Tubalcain should be a good follow up for wide spectrum info:
Here's his YouTube playlist:
https://www.youtube.com/@mrpete222If you click on "Watch on YouTube" in the lower left corner of the video image before you start the video, you will start that #1 video, but also have #1 - #99 listed just to the right of the YouTube screen.
A whole lot of amazing information to be learned here!