Antonelli Baseball
I've been hooked on this guy's videos for a while. Matt Antonelli is a former first round pick of the San Diego Padres. He made it to the majors but was never able to put together a good career.
He has a lot of instructional videos for coaches or players but the videos I like are the ones where he takes and answers different questions on what it's like to be a professional baseball player (and he's got tons of these videos). He has stories about hall of famers, what a typical game day is like for a major leaguer, what a typical off day is like, what road trips are like, what interacting with fans is like, explanations of the ins and outs of the game, what it's like being traded or sent down, how they get paid, relationship with the manager, why players do certain things at certain times, differences between each level of the minor leagues, what spring training is like, etc. He's pretty honest that he sucked as a major league player and even has a whole video talking about why he never got called back to the majors.
He's just got a lot of interesting content. If you're a baseball person, check him out.