I’ll start by plugging Harvard’s free courses catalog as well as Udemy
Edit: Gonna add 2 more I remembered-
Blender - I wish I had more time to learn it, but I did start the infamous “Donut Tutorial” once!
Watch Cartoons Online - Lots of good older stuff!
Yucata is fine for asynchronous play but if you’re looking for live online action
https://boardgamearena.com/
Is the way to go. Just can’t start certain premium games yourself but you’re fine to join any game that other people start