I have dabbled myself but I don't ride enough and my voice nor personality suits it ha.
I tend to stick to the bigger channels. Mostly Walteriffic, Do It With Dan, Suburban Delinquent. They remind me of friends I had or have. I like the way they produce their videos and the things they document are mostly funny, interesting or positive.
I sub to pretty much everyone mentioned above also chase on two wheels another of the more main stream people. If you are interested in seeing some just gorgous views check out Swiss Biker some of his vides go through the swiss mountains and has made it onto my "ride before I die" lists.