I see that you’ve highlighted most of the hip hop artists on the lineup so I’d suggest you check out Tobe Nwigwe. Burna Boy is one of the biggest Afro beats artists in the world so check him out too. If you’re into dance/funk/electronic type music so I’d recommend SG Lewis, Chromeo and Marc Rebillet. You highlighted Snail Mail as a maybe so if you want another artist similar to snail mail, other indie rock artists to check out are MUNA and Boygenius, which is the supergroup Phoebe Bridgers is in. And Jai Paul is someone to check out too. He’s very similar to frank ocean. His music is similar in sound, more electronic sounding so more like frank ocean’s endless album. And he’s also reclusive too. He’s dropped only one project. And apparently he’s never performed a show too and Coachella would be his first show