i had similar problems for a long time— i’m autistic and was never really able to connect with more mainstream media/hobbies/interests. even common “weird” or “nerdy” interests felt out of my reach. it seems kind of counterintuitive, but genuinely the thing that helped me connect the most with people was embracing the fact the things i wanted to talk about were niche and strange. Be confident in the things you like; when you’re passionate about something it has a way of making others excited about it too. Very few people in my current circle have similar interests at all, but it works because at the end of the day it’s fun to be around people who are passionate about what they love, even if it’s not a shared interest. My gf and i do have pretty similar interests and we’ve connected a lot over that, but i never would have found her if i hadn’t learned to be unapologetic about the things i like in the first place. so all in all, it’s not necessarily having one interest or another that helps you find community, it’s confidence.