@grim_elsewhere This is a fascinating question. I've been able to maintain 1-2 close friendships at a time online. In my case, they are always people who are a) neurodivergent/accepting (I am saved from explaining my every "odd" thought and action), b) much more social/outgoing than myself (they are more willing to keep interactions ongoing), c) use a lot of humor in their communication, and d) we have a shared special interest. I have typically found these people quite randomly, however.