My kid watches a channel called Come Play With Me. Their description is "COME PLAY WITH ME is an educational kid friendly toy doll channel featuring parody videos with various characters: Elsa, Anna, Barbie and many more!" I don't know how "educational" it is, but they have the dolls work and play together, go to school, get in trouble... the stories, while not complex, involve more than just playing around and being princesses. Since joining in 2014 their videos have 13,032,410,060 views, with some individual videos clocking in at hundreds of millions. That is crazy! My kid loves it; it is the only thing she ever asks to watch.
I just saw Undertaker has a Hot Ones video, I bookmarked to watch later.