Back when I was playing around with Emacs I found Protesilaos Stavrou's videos to be quite good for getting a feel on how to accomplish specific things with Emacs.

They are at: https://www.youtube.com/channel/UC0uTPqBCFIpZxlz_Lv1tk_g/vid...

Most of the videos are focused on practical tasks you would want to do. It's one of the few really good Emacs focused channels IMO.