Most editors are happy to answer questions regarding submissions. If a lit mag seems like a good fit for your work and it happens to be a collaboration, found poem, or other more nontraditional form, contact them via email or on other social media to ask if they are open to such forms. If you receive a response and can share it with me here, I'll note it for others in the future.
Most of the listings below have accepted found work or other unusual formats of poetry and/or claim that they will. They are listed alphabetically; some are currently accepting submissions, some are temporarily closed. I've also included a link to their Duotrope page, which will allow you to track deadlines if you currently subscribe to Duotrope.

Contemporary Verse 2

Submissions: Accepts submissions for bi-monthly issues, e.g. January 15 deadline for Jan/Feb issue
Duotrope: https://duotrope.com/listing/752
"CV2 is nationally respected for its openness to a diverse range of poets and poetic styles. From fresh to familiar and from traditional lyric to extreme language wrangling--we're not afraid to take it on."

District Lit

Submissions: Reading periods vary, check site for details
Duotrope: https://duotrope.com/listing/8508
"We want poems that writhe on the page, that are essential to understand something true and real. We're open to experimental forms, but generally prefer poems that are grammatically understandable."

Drunk Monkeys

DEADLINE: Reading periods vary, check site for details
SUBMISSION FEE: None
FORMS: Poetry, Fiction, Flash Fiction, Film Essays, Art, and Music
PAYMENT: None
DUOTROPE: https://duotrope.com/listing/7124 (includes interview with the editors)

Duende

Submissions: Reading periods vary, check site for details
Notes: Per the current editor, they are also open to found poetry, erasures, etc.
Duotrope: https://duotrope.com/listing/14258
"We are especially interested in collaborations between two or more writers, or between writers and visual artists. We accept submissions from writers working in English, or translating into English, from anywhere in the world."
"If your poetry is rough-cut diamonds, slightly off-kilter; if your fiction will make us feel more human and less alone; if you enjoy exploration of new forms at the edges of the literary universe; if you can bring us elegant translations of literature from far corners of the globe; if your nonfiction is wild and honest; if your visual art is raw and earnest'show us. We want to see it."

FIVE:2:ONE

Ghost Proposal

Submissions: Reading periods vary, check site for details
Duotrope: https://duotrope.com/listing/9928
"At Ghost Proposal, we want you to send us your broken packages, your word memories like bathing suits that don't fit; show us your love handles! We are a journal that seeks to represent a wide range of brain activity and circuitry in poetry, creative nonfiction, and multimedia, so be your own boundary, then cross it."

Half Way Down the Stairs

Submissions: Quarterly reading periods, see their submission guidelines
Notes: Themed Issues
Duotrope: https://duotrope.com/listing/372
"poetry that is fresh and original"

Juked

Submissions: Reading year round
Duotrope: https://duotrope.com/listing/960
"We don't adhere to any particular themes or tastes, but some people tell us they see one, so who knows."

The Museum of Americana

Submissions: Reading periods vary, check site for details
Duotrope: https://duotrope.com/listing/8159
"Give us love poetry that mixes language cribbed from The Federalist Papers with language cribbed from WWII propaganda posters. We want medicine shows and riverboats, Doo-Wop and Duke Snider. We want aspects of Americana we may not have even heard of yet."

NonBinary Review

Submissions: Reading periods vary, check site for details
Notes: Themed Issues, Paying Market
Duotrope: https://duotrope.com/listing/14354
"We want language that makes us reach for a dictionary, a tissue, or both. Words in combinations and patterns that leave the faint of heart a little dizzy. We want insight, deep diving, broad connections, literary conspiracies, personal revelations, or anything you want to tell us about the themes we've chosen. Literary forms are changing as we use technology and typography to find new ways to tell stories--for work that doesn't fit neatly into any one genre, we've created a separate category to properly evaluate submissions of a hybrid or experimental nature. Each issue will focus on a single theme."

Split Lip

Submissions: Appears to accept work year-round
Duotrope: https://duotrope.com/listing/8215
"Send up to five unpublished poems of face-melting material. Avoid any peppy and rhyming works. We want new, innovative works by fresh voices. Please avoid submitting what we consider “journal entries,” meaning: rants about feelings and how unfair the world is. Poetry Editor Scott Siders wants poems that are “as short and sweet as possible. Be original. Experiment. Take risks.”

Star 82 Review (*82)

Submissions: Poetry only
Duotrope: https://duotrope.com/listing/10271
"We are currently accepting work in five separate categories; you may submit in two categories (please see the specific guidelines for each or your work will not be read)… [the categories include] Erasure Text: Find a new, unrelated text in an old text. Also known as altered text: usually a page from a used book or a scan or copy that has been completely transformed with color, collage, sewing, handwriting, mixed-media, or text from other sources. Looking for both visual and verbal impact. (Erasures done only with black Sharpie are unlikely to be accepted.) Send up to two files in one submission."

streetcake

Submissions: Year-round
Duotrope: https://duotrope.com/listing/13215
"the magazine for innovative, experimental, and visual writing"

Third Point Press

Submissions: Year-round
Duotrope: https://duotrope.com/listing/16610
"We want you to send us the stuff you know is good. We want to see the not-quite-genre and not-quite-literary. We like experiments and minimalism and conceptual writing. We like magical realism and absurdism and underrepresented perspectives. We want you to use your voice and your perspective-not just what's popular right now."

Young Ravens Literary Review

Submissions: Reading periods vary, check site for details
Duotrope: https://duotrope.com/listing/16278
"We accept fiction, nonfiction, visual art, and poetry of all flavors, from free verse to found."

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