Fansplaining is “a weekly media outlet devoted to savvy writing about fans and fan culture.” They’re open for pitches:

“Fansplaining is a publication by, for, and about fandom. We’re excited to expand our freelancer pool and are always open to pitches. We are especially interested in global perspectives and marginalized demographics, and want to encourage early career writers to reach out as well—while our editorial standards are rigorous, we are excited to work with new voices.”

They pay $300 per piece. For details, refer to their post and this page.