"I Hear The Sunspot" is a masterpiece. It's quite long, but worth it. Our mc is hard of hearing, but there are also many different characters with different levels of hearing impairment.
idk if you know it but there's a pretty popular BL titled sign it focuses on a deaf guy and his love interest and also kinda his life
Sign is a BL about a deaf mc and his use of sign language to communicate with the ml and others at his work place
Sekai De Ichiban Toui Koi is an amazing manga. It's a kind of opposites attract manga. Short and sweet, too, only five chapters and an extra.
I'm a deaf guy and gay as well, I wanna read more about people like me so if anyone could help and give me some recommendations that'd be great! :D