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!
Does it hold your hand through only-legal-moves the way Board Game Arena does?
Yes, shows highlights of where legal moves are allowed.
Sweet!