Feeld is “a dating app for the curious.” They’re open for pitches on a rolling basis. They’re looking for pitches on “sex, relationships, gender, health, identity and culture, including researched guides and first-person writing.” Rates start at $800 per article (around 1,500 words). If interested, send your pitches to askfeeld@feeld.co. For more information, refer to their post and this page.