Overlooked and underrated YT sources

Jim Stinnett is a gem and his videos are nothing short of brilliant. He covers various topics, but mostly deals with jazz and RnB styles. The clips are just long enough, and Stinnet has a great presence. Oh, and even with his pedigree as a musician and teacher at Berklee, he uses mostly Squiers in his videos, thus effectively helping curb the GAS problem :)
Real Bass Lessons
And I was deeply saddened to hear of Jim's passing earlier today, so here is my farewell...
Based in Bass: A Giant Is Gone
 
Admittedly I didn’t read through the whole thread so I don’t know if anyone mentioned Munson Music Live. I use him primarily for guitar but now that I’m getting into bass I’m checking out his bass lessons and covers. I like how he puts everything on the screens. He’s easy to follow along. I’m able to follow him through most songs if I’m playing it for the first time.