Hmm I only have bl so I hope it’s okay with you!
https://www.mangago.me/read-manga/sign_language/ (Deaf)
https://www.mangago.me/read-manga/the_pizza_delivery_man_and_the_gold_palace/ (Panic attacks and anxiety)
https://www.mangago.me/read-manga/trick_or_love/ (DID/dissociative identity disorder, I’m pretty sure that can be considered a disability)
https://www.mangago.me/read-manga/happy_together_paradise_scans/ (Pretty sure the mc has epilepsy but its not mentioned that much in the story)
https://www.mangago.me/read-manga/kimi_no_yoru_ni_fureru/
https://www.mangago.me/read-manga/nanohana_boys/ this is a must read if you haven't yet
https://www.mangago.me/read-manga/jouzetsuna_yubi/
https://www.mangago.me/read-manga/with_the_light/
https://www.mangago.me/read-manga/the_blurry_viewfinder/
https://www.mangago.me/read-manga/can_t_see_can_t_hear_but_love/

Can be side characters too and can be hidden disability too.