love LGR, forgot to include it.I have to admit I'm a sucker for LGR and his quirkiness when it comes to taking a look at retro hardware. His vids always seem to align with the tech of my youth so I enjoy them.
Nilered is another one I enjoy but he seems to be posting less and less lately. If you're into "garage science" type stuff his vids are worth watching.
Bright Sun Films and Technology Connections are a couple of others I enjoy watching as well.