I've gotten very into YouTube golf channels of late and felt the need to create an account (recent lurker) to chime in.
Golf Sidekick started the ball rolling for me, and I can't recommend his stuff enough to anyone looking for a combination of entertainment, course/shot management, and light instruction. He's based in Thailand, so there's also a mild travelogue element. All of his content gets a laugh, duh, or eureka out of me.
Already been stated, but Not a Scratch Golfer is great. His story's inspirational and I try (fail) to emulate his on-course attitude. His style is similar to Golf Sidekick but follows a more consistent hole-by-hole format across videos.
Another vote for Bob Does Sports. Immensely entertaining. I've become a big Fat Perez fan, especially having grown up outside of Richmond. Even my wife enjoys their antics, and some of the guests they pull are unbelievable.
A newer one: BustaJack Golf. Cole and Mason have a delightful rapport. This one falls somewhere between Bob Does Sports and Not a Scratch Golfer - mostly entertainment but they aren't wild men. They can get a little silly but it's tolerable. Moments like their bridge ratings are very endearing.