I have some recs for Queer manga I've read, each link will take you to the page from the publisher which leads to places to get on digital platforms:

Our Dreams at Dusk: Shimanami Tasogare - It's one of my favorite manga I've ever read. It's got gorgeous art and is a heartfelt story with all sorts of queer characters.

X-Gender - A autobiographical manga about someone's awakening in their thirties!

Claudine - If you want to read something older, this was created by the mangaka of Rose of Versailles. it's a very ahead of its time story of a trans man given the time period it was created in.