I haven't read most of the thread, but no one ever talks about XylyXylyX, which is one my favorite channels
https://m.youtube.com/user/XylyXylyX/I have a biochem degree, so my math/physics knowledge is basically garbage, but thanks to this guy I understand at least much more than I did.
It's whiteboard style, and you really sort of have to go 2x speed, but he goes in depth, explains very well, and doesn't dumb it down