"The job of publishers is to publish, and that involves not only creating a physical product but also marketing it. The job of writers is to write and submit the results to publishers. If writers pay submission fees to the publishers, publishers have less incentive to find an audience for what they publish." -Louie Crew Clay, Rutgers
Here is a blacklist of journals who charge for unsolicited submissions in order to fund themselves. This article blasts them as "vanity" publishing. I am shocked by some of the big names on this list! And most likely the unpublished are the ones paying for costs of publishing more well-known poets.
Add Minerva Rising who charges $15 on submittable, although they pay $35.
The post also states that Submittable, who can charge up to $29, is in part responsible for journals passing on their fees to starving poets and writers!
"Journals that have free, open submission periods during the year have been excluded from the list. Contests have also been excluded, except where the only way to submit to a journal is through a contest entry." posted by English Kills Review (on Tumbler)