>>13134813Vsauce2 is no good. Vsauce is good in his math-related videos, e.g. he did one on infinities and it was well-made.
Numberphile is okay, but they often don't go into depth, and it's kind of aimed at retards, but that's the case for pretty much any popular math channel.
Aleph 0 is a really good channel, but he doesn't have many videos.
3blue1brown's early videos were really good, but then he started pandering to retards, and now they're not worth watching.
Other good math channels are like Michael Penn, MathDoctorBob, etc., where they are university lecturers, since they go through interesting topics in good depth.
And a standout channel is Richard Borcherds.