These are kind of more casual classes, but I really enjoy following along to drawclass vods, which are hosted by drawfee. some are anatomy-specific and others go over things like color theory, character design, portrait painting, etc.
https://youtube.com/playlist?list=PLqcMGDHb6-XfqGOo3oOZ5xsjUyTQaXhkv&si=DryO_9QPtsogoAC9
