I don't know what I would replace YouTube with, because YouTube is free so I have never needed to consider alternatives.
But for the most part - probably nothing. For everything else, it'd just be either some other free option, or like going back to the internet of the early 2000s, which would be good and bad in its own ways.
But for the most part - probably nothing. For everything else, it'd just be either some other free option, or like going back to the internet of the early 2000s, which would be good and bad in its own ways.