These magazines/anthologies pay for fiction; a few also accept other genres, like non-fiction and poetry. Some calls are themed. – S. Kalekar

Uncanny
This award-winning speculative fiction magazine has just opened for flash fiction submissions only. They are closed to all other lengths and genres.
Deadline: 26 February 2024
Length: 750-1,500 words
Pay: $0.10/word
Details here.

NewMyths
This magazine publishes unthemed speculative fiction, non-fiction, and poetry. They are also reading submissions for the ‘The Janus Gates’ themed anthology. A note on their website dated December 2023 says, “Besides looking back into the past and forward into the future, Janus was also the original gatekeeper, the first god to open the portal between gods and men, the god who guarded every new beginning and ending, every transformation, the god you prayed to every morning before you could speak to any other. A Roman peasant stepping through the Janus Gate in Rome in the spring was transformed into a soldier marching off to conquer the world. The Roman soldier stepping out of the Janus Gate in the fall became the peaceful farmer again.
Who better to inspire our next NewMyths anthology centering around portals, thresholds, transformations–the future and past worlds of our dreams and myths?  Send in submissions to The Janus Gates during our two reading periods next year (January-February and June-July)”. They also accept non-fiction, poetry, book reviews, and art for the magazine. For general submissions, they say, “We like to balance each quarterly issue between science fiction and fantasy, dark and light, serious and humorous, hard and soft science fiction, and longer and shorter works.
Our readers are not fixated on a single style or tone or genre, but prefer a quality sample of the field. Think tapas or dim sum. … Please keep submissions PG or cleaner.”
Deadline: 28 February 2024
Length: Up to 10,000 words for fiction for general submissions
Pay: $0.03/word; $50 for book reviews
Details here (anthology theme details) and here (general guidelines)

Parsec Ink: Triangulation Series
‘Hospitium’ is the theme of a fiction and poetry anthology, part of Parsec Ink’s annual Triangular anthology series. They have detailed guidelines, including, “Hospitium is a Greco-Roman concept of hospitality, where both the guest and host have an obligation to treat the other with kindness and respect, regardless of external quarrels. We’re looking for outstanding fantasy, science fiction, weird fiction, and speculative horror from both new and established writers.”
Deadline: 29 February 2024
Length: Up to 5,000 words (prefer up to 3,000); up to 100 lines for poetry (see guidelines)
Pay: $0.03/word for fiction; $0.25/line for poetry
Details here and here.
(Parsec Ink is also open for a short story contest for non-professional writers and youth on the A.I. Mythology theme, with an end-March deadline – see this page and their Submittable for details.)

Adi
Adi’s tagline is, ‘rehumanizing policy’, and you can read about them here. They are reading fiction submissions on the ‘Disobedience’ theme for an upcoming issue. “We’re looking for short fiction about the past, present, and future of disobedience to orthodoxies of all kinds – from political doctrines to religious creeds to artistic or intellectual frameworks. We want stories of the rebellions, heresies, theoretical revolutions, and moments of civil disobedience that catalyze this world and alternative worlds.  
This should be interpreted expansively and imaginatively. Please familiarize yourself with the range and spirit of our archives; Adi tends toward creative, experimental approaches to political writing, measuring the effects of policy through the intimate lives and experiences of people with a particular focus on those on the margins and in the global south.
We do not want dreary political agitprop. We love work that bends genres, that embraces the absurd, that excavates interior lives alongside external conflicts. Send us work that satirizes, fabulizes, and fantasizes, that disturbs, beguiles, moves, challenges, surprises, and ignites.” They also accept translations (see guidelines). Please read their past stories (some links on their Submittable) to see if your work is a good fit. 
Deadline: 29 February 2024Length: Up to 5,000 words
Pay: $200 for flash fiction up to 1,000 words; $500 for longer stories, up to 5,000 words
Details here and here.

Apparition Lit
This is a quarterly speculative fiction and poetry magazine. They are reading submissions on the ‘Mercurial’ theme during the second half of February from all writers. And, “Our submission window will remain open for an additional week each quarter for writers who identify as BIPOC and self-identify in their cover letter.
We will also accept simultaneous submissions from writers who identify as Disabled, BIPOC, or LGBTQIA+.” (See guidelines).    
Deadline: 29 February 2024 for general submissions; will extend by a week for BIPOC writers (see guidelines) 
Length: 1,000-5,000 words for fiction, up to 5 poems 
Pay: $0.05/word for stories, $50/poem 
Details here.

Mukoli: The Magazine for Peace
Their website says, “Housed in the School of Conflict Management, Peacebuilding and Development at Kennesaw State University, Mukoli is a magazine for peace because we publish art and literature that engages with peacemaking, peacekeeping, and peacebuilding in its many forms.” They publish fiction, non-fiction, poetry, art & new media, and translations. Submission is via a form.
Deadline: 1 March 2024 for the Summer issue
Length: Up to 10,000 words for fiction, up to 5,000 words for nonfiction, 3-5 poems
Pay: $75
Details here and here.

Bennington Review
They publish fiction, creative non-fiction, poetry, film writing, and translations. “We aim to stake out a distinctive space for innovative, intelligent, and moving fiction, creative nonfiction, poetry, film writing, and cross-genre work. In the spirit of poet Dean Young’s dictum that poets should be “making birds, not birdcages,” we are particularly taken with writing that is simultaneously graceful and reckless.” They are affiliated with Bennington College. All work will be considered for the print journal; some work will additionally feature on the website. “We do not accept unsolicited reviews or interviews, though we are always happy to entertain queries about genres of work that fall outside the journal’s current scope.”
Deadline: 8 March 2024
Length: Up to 30 pages for fiction and creative non-fiction; 3-5 poems
Pay: $120 for prose of six typeset pages and under, $250 for prose of over six typeset pages, and $25 per poem
Details here and here.

Sans. Press Anthology
Sans. Press has issued a submission call for a short fiction anthology, and they want submissions to go with their theme, ‘Stranger’, as well as cover art (see guidelines). “Behind the fog, in the tall grass, or even standing in plain sight – there are mysteries everywhere for those brave enough to look. Sometimes, reality might just refuse to behave in the ways we expect it to. It might come in the form of prowling creatures, or in a revelation from someone we knew, or maybe in ourselves; the important thing is that a whole new facet of reality suddenly shines in new light.
Truth might be stranger than fiction, but we’ve decided to look for the strangest fiction for our seventh anthology. We’re looking for stories that go beyond the boundaries of the expected – or maybe even those of possibility!
Stranger is an anthology for stories that look into unexpected places. We want real or magical, lyrical or experimental, as long as it finds that truth wasn’t as simple as once thought.”
Deadline: 12 March 2024, or until filled
Length: Up to 5,000 words
Pay: €175; additional €50 for stories to be housed in the archive
Details here.

Terrain.org
This magazine focuses on place, climate, and justice. They publish fiction, poetry, essays, articles, artwork, videos, and other contributions, as well as translations. They particularly seek underrepresented voices (see guidelines). General poetry submissions are closed, while general fiction and non-fiction are open; submissions for ARTerrain and Letter to America are open year-round.
They are also reading submissions for a special call; they have detailed guidelines on the ‘Climate Stories in Action’ theme, including, “Narratives and art that center solutions (about climate action), introduce us to everyday climate heroes, and showcase the joy discovered through community engagement often lead to feelings of agency and possibility.
The “Climate Stories in Action” series will expand our vision of climate activism and help people imagine meaningful ways to be involved. We are inviting storytellers to submit poetry, nonfiction, fiction, art and multimedia pieces that showcase climate activism in professional, civic and community life. We are interested in stories that help shift our cultural mindset from despair to creative possibility and from isolation to collective purpose.” They will publish 12 pieces in this special series.
Deadline: 31 March 2024 for general prose; 8 April 2024 for Climate Stories in Action
Length: Up to 5,000 words for prose
Pay: $200 for Climate Stories in Action series; at least $50 for regular contributions
Details here and here.
(Terrain.org also has an annual Editor’s Prize of $500 per genre for underrepresented writers for which there is no submission fee, and another prize, for all writers, for which there is a submission fee – see guidelines).

Short Stories, Long
This is a new Substack-based short fiction project; the first issue was published in July 2023. They are currently accepting submissions from two categories of writers: unpublished writers, and BIPOC writers.
Deadline: Open now
Length: 2,000-8,000 words (prefer 3,000-5,500 words)
Pay: $100
Details here and here.

Apex Magazine
This magazine publishes speculative fiction. They accept stories up to 9,000 words, though they seem to cap payment at 7,500 words. And, “If we podcast your story, additional payment is $.01 per word up to 7,500 words.” They accept translations, and do not accept unsolicited reprints.
Deadline: Open now
Length: Up to 9,000 words, payment capped at 7,500 words (see guidelines)
Pay: $0.08/word
Details here.

The Cosmic Background
This is flash fiction magazine. “We are primarily a slipstream publication — that means we like your stories that don’t make a ton of sense. We want your giant talking frogs. We want your people with unexplained, never commented-upon eyes in their fingertips. We enjoy character-focused writing, with an emphasis on voice.” They also accept reprints.
Deadline: Open now
Length: Up to 1,000 words (see guidelines)
Pay: $0.08/word
Details here and here.

Bio: S. Kalekar is the pseudonym of a regular contributor to this magazine. She can be reached here.