Advice needed : Adult living situation [Non autistic OP]

My cousin (21 M) is autistic and from a neglegent home situation. His father has put him in several horrible boot camp type places because he doesn't want him living with him anymore. As of last night he's now homeless so he's temporarily staying with my family. We'd love to help him find a living situation with some support - I was wondering if anyone from this community had any recommendations or places we could contact? Thank you in advance!