I’m not a professional, but I have worked with some talented people in the independent film scene here in Dallas, Texas USA. Rigging, TD, and video editing are my main areas of focus. In addition to CGCookie I’d recommend Humane Rigging:
https://youtube.com/playlist?list=PLE211C8C41F1AFBAB&si=g8HjBqFAlK9AqZsP
Even though it’s a very old version of Blender the information about rigging still applies. As for a payed course, I like the one Wayne recommended in one of his videos. Don’t remember if it was one of the course or on YouTube.
https://www.p2design-academy.com/