These magazines pay $150 for stories, and some pay more; they are open now for submissions, or have reading periods coming up. A few also accept work in other genres, like poetry and nonfiction.  — S. Kalekar 

The Cockroach Conservatory: Volume 1 – The Working Zealot’s Guide to Gaining Capital in Pre-Apocalyptic America 

For this anthology, the editors want “Weird stories about cults, capitalism, working stiffs, and weirdos….Cults! Murder! Capitalism! Take it and run.” They like bizzaro, horror, humor, and sci-fi and fantasy to be on the weirder side.
Deadline: 5 June 2018
Length: 3,000 words
Pay: $0.06/word
Details here. 

The Threepenny Review  

This well-respected literary magazine only reads submissions in the first half of the year. They publish fiction, nonfiction, poetry and a ‘Table Talk’ piece.
Deadline: 30 June 2018
Length: Up to 4,000 words for fiction and memoir, 1,200-2,500 for critical articles, up to 1,000 words for Table Talk; 100 lines for poetry
Pay: $400 for prose, $200 per poem or Table Talk piece
Details here. 

Nexxis Fantasy: Corporate Shadows 

They publish science fiction. The theme can be widely interpreted, and is inspired by the recent net neutrality rulings. Profits from this anthology will be donated to the Electronic Frontier Foundation to fight for net neutrality and other civil liberties in the digital world.
Deadline: 1 July 2018
Length: Up to 15,000 words
Pay: $1/100 words
Details here. 

Third Flatiron: Terra! Tara! Terror!  

They want science fiction, fantasy and horror stories for the theme. Their guidelines say, “Whether the setting is a cabin in the woods (Terra), Fae (Tara), or spaceship Nostromo (Terror), take us there and spin your adventure…. we’d like a mixture of dark and bright stories.”
Reading period: 15 June-15 July 2018
Length: 1,500-3,000 words; query for longer
Pay: $0.06/word
Details here (scroll down) and here. 

Fiyah Magazine: Pilgrimage  

This magazine publishes speculative fiction by and about people of the African Diaspora. They will read stories on the Pilgrimage theme during their next reading period. Their guidelines say, “this issue is all about the trip, not the destination. We’re looking for stories of journeys to new worlds, of returning to lost worlds, and journeys of the soul. But, like always, make it weird, make it magical, make it Black.” They also accept poetry.
Reading period: 1-31 July 2018
Length: 2,000-7,000 words; novelettes up to 15,000 words
Pay: $300 for novelettes, $150 for short stories, $50 for poetry
Details here. 

Future Visions  

This is a science fiction anthology series. Their guidelines say, “What do you hope the future will bring? What are you afraid we may become? How do our visions of the future inform and give shape to the hopes and fears that we have today? These questions are what defines anthology series like The Twilight Zone and Black Mirror. Rather than mandating a theme for each publication, (one publication for cyborgs, one for time travelers, etc…) I want authors to feel free to explore these larger questions using any and all of the popular science fiction tropes: new technology, exploration, nightmarish dystopians, alien species, baffling utopias…”
Deadline: Rolling
Length: 2,000-7,000 words
Pay: Minimum $150 via a royalties model (see guidelines)
Details here. 

Less Than Three Press: Life After All  

This LGBTQ+ press wants stories for their apocalyptic/post-apocalyptic/pastoral apocalyptic anthology; stories about the life after an apocalypse being far from hopeless. Stories should have a happily ever after or happy for now ending.
Deadline: 31 July 2018
Length: 8,000-15,000
Pay: $150
Details here. 

The Massachusetts Review: Working Title  

Working Title is the name of the magazine’s new digital releases. According to their website, “Working Titles will showcase prose that is longer than we publish in the print edition (7,000 – 25,000 words), as well as work that integrates visual and interactive elements unique to digital platforms. Each stand-alone Working Title will be published as an e-book available for download, and they may in future be collected in a printed anthology.” They accept fiction, nonfiction, novellas and translations. They are currently accepting mailed submissions only for Working Title; their general submissions are charged and have a different reading period.
Deadline: 1 October 2018
Length: 7,000-25,000 words
Pay: $250
Details here. 

The Dark Magazine  

They publish horror and dark fantasy, though not graphic, violent horror. The editors ask writers to try them with fiction that falls out of regular categories and welcome experimental works.
Deadline: Rolling
Length: 2,000-6,000 words
Pay: $0.06/word
Details here. 

Clubhouse Magazine  

This is a Christian magazine for children aged 8-12. They want well-developed, fast-paced, engaging fiction that has people of their readers’ age as the main character. They don’t want stories where adults solve all the problems, or preachy-sounding ones. They also accept nonfiction – every article should have a Christian angle. Also see details of Clubhouse Jr Magazine for younger children.
Deadline: Rolling
Length: Up to 2,000 words for fiction and 1,000 words for nonfiction (see guidelines)
Pay: $0.15-.25/word, up to $200 for fiction; up to $150 for nonfiction
Details here.