I think it's smart that you aren't just doing one thing to meet people. Imo, it's good to get socialization in whatever way you can (although that sounds kind of desperate), whether it's via a class or via reddit or wherever. Don't put all your eggs into one basket. I spend a lot of time on reddit myself just to stay sane even though I have family to talk to for some of the time (apparently I rely on social interactions a lot).

Finding other artists also seems like a good idea. It seems like a good way to meet fellow weirdos. If you meet the right artists, I guess.

Also, I've spent some time on r/MBTI. I could recommend it, although it's kind of changed over time, so I'm not sure if you would like it or not. They've had a lot of trends there, but eh... it looks kind of okay right now actually. Actual discussions. That's a nice change of pace for them. IMO, anyway. You could also try individual type subreddits for that matter.