Here are some channels I find funny, and the videos you should start with for each channel:
"GradeAUnderA" -> https://www.youtube.com/watch?v=zbRQ-PGQeQ4
"Casually Explained" -> https://www.youtube.com/watch?v=9_RxaeN0FGw
"Sam O'nellla Academy" ->https://www.youtube.com/watch?v=X2bu3UjCxj0
reply