Jessica Jones season 3 features a trans side character - Jessica's assistant. It's only a very small role, but the character packed a lot of personality into any scene she was in, and also helped drive some of the season's themes home, imo.

In a way, the smallness of this role was why I liked it - I want to be seeing more trans main characters and stories that are explicitly trans, but representation also means more trans people just existing in the world, as themselves.