(note - regardless of vintage, the underlying principles remain the same)
I've done both the one sacboi posted above and the one I posted below. I had a lot of trouble starting with the second one, but it is a lot more in depth. So, I'd recommend doing the top one first as it is a little easier to follow for a beginner, and then after playing around on your own a bit, trying the second one to reinforce skills and learn a few new things as well.
Replies
https://www.pluralsight.com/courses/game-character-rigging-fundamentals
(note - regardless of vintage, the underlying principles remain the same)
Raffaele is the god of rigging...
and a really good teacher...
https://www.pluralsight.com/courses/maya-rigging-fundamentals