I don’t think there’s a singular place where you’ll find lolcows with ease. I found my biggest catch before discovering this website in a chat for furry guitarists, not knowing that I had run into tier one autism. I’ve met people worthy of it on a forum I used to frequent, and I probably could make a thread on the guy with all the drama he stirred in a forum RPG if I really felt like seeing where he is now.
My friends found one of our favorite personal ones on Newgrounds, just browsing.
Pretty much, just look at any social media and you’ll be able to find the good ones if you look hard enough. That is, if you’re not grasping at nothing when you look for stuff when you can’t find shit worth a thread. I’ve seen so much of that everywhere, just a bunch of weens not knowing what autism is worth documenting and laughing at and what autism should be laughed at passively without making a huge deal out of it. They also typically get involved as the “le epiik troll” wannabes they are. Just look for people like that and you’ll also find people worth threads, now that I mention it.