Having a short fiction to submit, I took a fresh look at what’s out there in the way of getting it in front of readers. Googling “current fiction publishers” returned the usual half-million results. But a site that noted “a full list of publishers accepting manuscripts directly from writers” had already done much of the work for me.
Here are two current (May, 2018) sources.
lists hundreds of markets. 217 Paying Markets for Short Stories, Poetry, Nonfiction; 36 Paying Markets for Fiction, Poetry, Creative Nonfiction; Speculative Fiction Magazines Accepting Submissions; 163 Literary Magazines Accepting Reprints; even a spreadsheet with 300 places to submit.
Erica also provides a list of Upcoming (June, 2018) Calls.
$5 per month
https://Duotrope.com/ currently lists 6,863 active fiction, poetry, nonfiction, and visual art publishers and agents. I chose Duotrope because they successfully helped the Writers Co-op advertise for story submissions for our upcoming anthology, The Rabbit Hole. That, and, paying for updated information implies a contractual obligation on their part to keep their information updated.
Researching publishers that are actively calling for submissions and submitting according to my preferences and their guidelines is, well, a fun and hope-full part of this business.
If you will, please tell us in the Comments section how you find outlets for your work.