Does your son have a good friend who can introduce him to someone? I met my husband through my brother and it turned out to be the best relationship I ever had.
One thing I have found very interesting and insightful has been the show Love on the Spectrum. There’s a gal who specializes in communication and helps the participants on how to engage in conversations and finds ways on how to explain social cues. Might be helpful in giving some ideas and help bring up topics to discuss.
@A MyAutismTeam Member your daughter is me in a nutshell! 😊 I'm now 42 and have never been on a date - just don't have that desire. I'm aromantic/asexual. I'm perfectly content without a romantic partner 🙂