This is 100% the correct answer - it’s literally what actual doctors use, even while you’re sitting in their office with them as they diagnose you. It’s subscription only though.
I had a roommate who would binge watch that guy's videos in his room and when he came out I'd make jokes like hey how's Elmer Fudd doing? Roomate didn't like that (honestly I just thought they were more of his goofy ufo vids at the time) but he does have a pretty damn good channel regardless of rhotacism. I also like Anton Petrov on YouTube whose angle is more about recent developments in astrophysics: https://m.youtube.com/user/whatdamath
HBS templates and examples for comparison (the sections that say login required apparently do not actually require a login; fyi)