Are you me? I subscribe to Applied Science, AvE, Signal Path, and W2AEW. I'll have to check out Mikeselectricstuff and Mr Carlson's Lab. EEVblog is missing from the list, but arguably that one goes without saying :-)
Another addition to the above excellent list is "bigclivedotcom". Lots of teardowns of cheap Chinese electronics with an eye towards what exactly makes them dangerous. https://www.youtube.com/user/bigclivedotcom/videos
Clive is the best. Sometimes the cheap eBay gadgets get a little repetitive, but he does mix in a lot of different stuff. I really enjoy his videos on printing circuit boards and making his little 'nixie' lamps. He's just fun to listen to.