For Older Kids/Teens: Sanders Sides
My teenage daughter was the first to introduce me to Thomas Sanders and his fantastic YouTube channel. Thomas Sanders has created an entire series in which he goes on a self exploration journey, acting out all of the different sides to his personality. I have found that the questions of identity that he poses resonate deeply with young adults.
Sanders' Sides reminds me a lot of the movie Inside Out...all of the personas in the show are, for the most part, just parts of himself. His logical brain, his "dad" personality, his fantastical/imaginative side, and his anxiety (pictured below).