Not sure if it’s specifically what you’re looking for, but I’d recommend going on disboard and looking up local discord servers. I’ve joined a couple and met some people I like hanging out with through one. I’ve found that people on local servers tend to be a mix, including other lonely or socially awkward people. One of the servers I’m in literally has a How to Make Friends pinned post for people who might need it. It’s also got an all purpose support thread going that tends to be very positive.

Find a few near you that do meet ups or events, feel the groups out for a bit even just lurking and see if it feels right for you. Maybe go to an event, even if you also feel anxious, and try to meet some of the people you talk to online. Just remember that they might also be lonely people trying to make a connection too.