Invideous. A Software that provides an alternative YouTube look/frontend. There are also people who host invideous instances as publicaly accessible websites. Sadly all the public instances have been blocked by youtube for about a month now. I hope there will be a fix soon.
Mostly people who get called nazis are saying fascist stuff. So while the term nazi isn’t correct it is meant as an insult to their ideolegy by drawing a line to past fascists.