I’m half-watching these and listening as I do other things, pausing to note differences from 2.79 that I know will trip me up.
From the official Blender YouTube channel
https://www.youtube.com/playlist?list=PLa1F2ddGya_-UvuAqHAksYnB0qL9yWDO6
And don’t forget the series by Ron Proctor: Introduction to Blender 2.80