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!
Ours lends them out for all the city museums! And my old local library had a seed library, the deal is that you saved seed from whatever you grew and gave some back.