Reminds me of my youth when I read "How To Win Friends And Influence People," which recommended taking an interest in the things other people are interested in. I realised I hadn't really been doing that, but then I realised that I simply didn't want to. So I knew why I wasn't popular then, but it wasn't of much use to me. I'm just not good at taking an interest in stuff just because I think I should, which I gather is a common ASD problem.
But it wasn't quite that bad in the long haul. Shopping around, I found people with whom I had interests in common - usually anything but maintream types. So then I didn't have to take an interest in anything that bored me, yet I could still have friends. The supply of such convenient people has waxed and waned, and I still have little control over that. I suppose the answer would be to put myself out there more and keep searching, but somehow I can't be bothered, and this pandemic has put the kibosh on that approach anyway, except online. And I never was very outgoing anyway.
As for specific interests that I've successfully shared, the biggest one by far has been playing music. I suppose I was just lucky that I happened to take up music up as a special interest when I was about 10 years old, and spent so much time working on it that other musicians started to like my results and they began to invite me to play with them. Without music, I don't think I'd have had much of a social life at all. Last time I did a performance I arrived at the bar first and until the other musicians arrived I was just the same fish out of water that I naturally am without my super-power - so I just sat there alone pretending to be comfortable in my own company. Then moment the rest of the band arrived everything clicked into place as we pursued our common purpose together, and finally I felt part of what was going on.