I’m going to assume everyone here knows about Lynda.com — the online tutorial site with thousands of well-made videos that focus on design, graphics software and other things.
Anyway, I checked out a book from our public library a couple of days ago, and there was a notice there that Lynda.com was freely available to all library card holders. It seemed a bit too good to be true, but they do have exactly that: totally free access from home using nothing more than your library card number.
A little more checking shows that it’s not at all unique to the public library here in Salt Lake City — various libraries across the country offer the same thing. Maybe I’m just slow to realize this, but assuming others are as clueless as me, here’s an article: https://www.makeuseof.com/tag/lynda-com-free-library/