Seeing the other post here about YouTuber that went downhill and seeing content creators I am familiar with makes me sad. But how about those that still makes great, high quality content?
3blue1brown
Makes great visual math videos. Without him I would have never studied electronics.
Also wrote open source software to generate those fantastic visualizations. It has been forked and is maintained, and it has therefore influenced the whole genre positively.
On the topic, Brady Haran’s channels are also putting out great educational content.
Damn, I was going to post this list, you beat me to it though.
I love that whole maths group, Brady Haran, Matt Parker, Hannah Fry, James Grimes, Ben Sparks, Ayliean MacDonald… (and so many more.)
As soon as I get a notification that a new Numberphile video drops, I’m watching it ASAP.