Nutnfancy, Hickok45, Demolition Ranch, 22Plinkster, and Sooch00 are my favorites. I also really like Jerry Miculek's channel, but he doesn't post very often compared to the others.
Have you considered building an AR? For $900(ish) you could build yourself a VERY nice gun. I spent about $500 in total on my first AR build and it shoots just as well as any of my friends store bought ARs.