Thanks to @/majesdane, Ikuno from Darling in the FranXX is a lesbian and it’s very heavily implied she’s in a relationship with another character, Naomi at the end.
Thanks to @/jouyajougasaki Fukakai na boku no subete wo a with a cast of mostly LGBT+ characters and with a non binary main character.
Warning: Suzu one of the characters has he's own BL series which is NSFW with characters who are minors but you don't need it for this one.