Why can't we do what we do on Youtube and go there and search? If a list here on the forum get too big it just makes it easier to search on the platform in the first place.
I remember a few people made a bit of effort to do that for YT channels some years ago. Why not just add the alternative link to that. It might at least mean only one list to keep updated.
Also. Although I can't speak for what reasons others might choose a non-YT alternative, I am uninterested in rejecting YT because they canned a few crypto vids and at least one of Rossman's cat videos over christmas. If it becomes convenient for me then I might.