If you have a completed story, essay, poem, or piece of creative nonfiction, these are good opportunities. A journal is more likely to publish what you submit if they are looking for it.
These are all my posts that list calls for submissions. They are arranged in descending order, with the most recent posts first. All are paying markets.
Even if the deadlines on the older calls have passed, it is worth looking at them as most journals will be open to submissions periodically. If you find a journal that is a good fit for your writing, you can submit during their next reading period.
Here are some good sites to check for submission calls.
Poets & Writers
Cathy's Comps and Calls
Places for Writers
The Poetry Kit
Funds for Writers
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
Here is a spreadsheet with 300 places to submit - both paid and unpaid
UPCOMING (March calls)
Parks & Points. Genre: Poetry. We invite poetry submissions that reflect upon nature, outdoor exploration, and accompanying moments of adventurousness or self-reflection. Submit 1-5 poems, the name of the location (park, public land, or designated outdoor space) that inspired the poem or poems. Payment: $15 per poem. Deadline: March 1, 2017.
Penny. Genres: Experimental prose, poetry, short stories, CNF. Payment: $25. Deadline: March 1, 2017.
Body Parts Magazine. Genre: horror, erotica, speculative fiction, essays and art. Theme: Killer Clowns and Freak Shows. Payment: $5 for flash fiction and $10 to $20 (depending on length) for short stories and nonfiction. Deadline: March 1, 2017.
Upstreet. Genres: Fiction, CNF. Payment: $50-$150 per work. Deadline: March 1, 2017.
Retro Future. Genre: Science fiction. Payment: SFWA minimum compensation guidelines. Deadline: March 1, 2017.
THEMA. Genres: Fiction, poetry, essays on theme "Is there a word for that?" Payment: Short story, $25; short-short piece (up to 1000 words), $10; poem. Deadline: March 1, 2017. Accepts reprints.
The Blue Route. Restrictions: Undergraduate students. Genres: Prose – Submit 1-3 pieces of fiction or creative nonfiction totaling no more than 3000 words. Poetry – Submit up to 3 poems. No genre fiction. Payment: $25. Deadline: March 1, 2017.
Rhubarb. Restrictions: Mennonites. Genres: Poetry on theme of "Play." Payment: $50. Deadline: March 1, 2017.
Contrary Magazine. Genres: Fiction and poetry. Payment: $20 per author. Deadline: March 1, 2017.
The Cincinnati Review. Genres: Prose and poetry. Payment: $25 per page (prose), $30 per page (poetry). Deadline: March 15, 2017.
Southword. Genres: Prose and poetry. Payment: €30 per poem and €120 per short story. Payment to writers within the Republic of Ireland is made by cheque. Writers abroad must accept payment through Paypal. Deadline: March 15, 2017.
Supposed Crimes Publishers: Fairy Tales: A Speculative Anthology. Genre: "We are looking for stories that feature lesbian or bisexual heroines across a variety of genres, including thriller, paranormal, mystery, military, western, fantasy, and science fiction. Sexual content is not a requirement, but a compelling emotional connection between women should be a primary focus." Payment: $30 per story. Deadline: March 15, 2017. ?
The Journal of Compressed Creative Arts. Genres: Fiction, creative nonfiction, poetry, mixed media, visual arts, and even kitchen sinks, if they are compressed in some way. Payment: $50 per piece. Deadline: March 15, 2017.
The Puritan. Genres: Fiction, nonfiction, poetry. Payment: $100 per nonfiction piece, $50 fiction, $15 per poem. Deadline: March 25, 2017.
Understorey Magazine (CAN): Issue 10: Youth on Power. Restrictions: Open to writers and artists age 12-21 who live in Canada and identify as female or non-binary. Genres: Fiction, essay, poetry. Theme is Power. Payment: $30-$60 per piece. Deadline: March 31, 2017.
Orford Parish Books. Genre: Fiction submissions wanted for New England folk horror anthology (worldwide). Payment:$75 per story. Deadline: March 31, 2017.
Notre Dame Review. Genres: Fiction, poetry. Payment: Small gratuity. Deadline: March 31, 2017.
Amethyst Arsenic. Genre: Poetry. Payment: $10, featured poet receives $50. Deadline: March 31, 2017.
Sycamore Review. Genres: Poetry, short stories, CNF. Payment: $50 per short story or non-fiction piece, or $25 per poem. Deadline: March 31, 2017.
8th Annual Festival of Shorts hosted by Edmonds Driftwood Players. Genre: Short play on theme "Unintended Consequences." Prize: The winning plays will be performed and judged at the Edmonds Festival. Deadline: March 31, 2017.
West Branch. Genres: Poetry, fiction, CNF. Payment: $50 per poem, 5 cents per word for prose. Deadline: April 1, 2017.
Confrontation Magazine. Genres: Fiction, poetry, non-fiction (worldwide). Payment: $175-$250 for fiction, $75-$100 per work for poetry. Deadline: April 15, 2017.
Southern Indiana Review. Genres: Fiction, CNF, poetry. Payment: $50-$100 per piece. Deadline: April 30, 2017.
The Quilliad. Genres: Poetry, flash fiction (500 words or less), and short stories (generally 1000-2000 words). Payment: $13. Deadline: April 30, 2017. (?)
Bennington Review. Genre: Prose and poetry. Payment: $100-$200 for prose, $20 per poem. Deadline: May 15, 2017.
New England Review. Genre: Fiction, poetry, CNF. Payment: $20 per page. Deadline: May 31, 2017. (Charges a small fee to submit.)
One Story. Genre: Fiction between 3,000 and 8,000 words. Payment: $500. Deadline: May 31, 2017.
Baltimore Review. Genre: Fiction, poetry, CNF. Payment: $40 per piece. Deadline: May 31, 2017.
Gettysburg Review. Genre: Poetry, fiction and essays. Payment: $15 per page (prose), $2 per line (poetry). Deadline: May 31, 2017. (Charges a small fee to submit online.)
Vestal Review. Genre: Flash fiction. Payment: 3 to 10 cents per word. Deadline: May 31, 2017.
Nashville Review. Genres: Poetry, songs, fiction, novel excerpts, nonfiction up to 8,000 words. Payment: $25 per poem & song selection; $100 per selection for all other categories, including featured artwork. Deadline: May 31, 2017.
28 Calls for Submissions in February 2017 - Paying Markets
47 Calls for Submissions in January 2017 - Paying Markets
27 Calls for Submissions in November 2016 - Paying Markets
36 Calls for Submissions in September 2016- Paying Markets
24 Calls for Submissions in July 2016 - Paying Markets
26 Calls for Submissions in June 2016 - Paying Markets
36 Calls for Submissions in May 2016 - Paying Markets
18 Calls for Submissions in April 2016 - Paying Markets
24 Calls for Submissions in March 2016 - Paying Markets
29 Calls for Submissions: February 2016 - Paying Markets
13 Calls for Submissions: January 2016 - Speculative fiction, poetry, short fiction, non-fiction, children's lit
15 Calls for Submissions: December 2015- Paying Markets
HarperOne Accepts Unagented Manuscripts for Digital-First Fiction Imprint
HarperLegend will publish visionary fiction from new voices that communicates wisdom, insight, and/or personal growth with an overarching theme of transformation. Submissions accepted online via www.HarperLegend.com11 Calls for Submissions in November 2015 - Paying Markets
11 Calls for Submissions in October - Speculative fiction, poetry, literary fiction, nonfiction
13 Calls for Submissions in September - Horror, Sci-fi, Personal Essays and more
6 Calls for Submissions: Speculative Fiction, Essays, Poetry - August 31 Deadlines
10 Calls for Submissions: Anthologies, June - Aug 2015: Science fiction, Horror, Nonfiction, General Fiction, Poetry
Calls for Submissions - June & July: Sci-fi, Fantasy, Horror, Fiction, Poetry, Nonfiction
Calls for Submissions - Sci-fi, Fantasy, Horror, Erotica, Fiction, Nonfiction
Calls for Submissions - Speculative Fiction Anthologies
Calls for Submissions: Speculative Fiction and Fantasy