[hnuser77]

It looks like Bing SFW search is only Youtube, same as DDG. Only video search site I've seen lately is Petey Vid which searches the expected Vimeo, Dailymotion, but also Instagram, Twitter, Peertube, and a bunch of random non-US video sites.

[missblit]

I just tested, and Bing Video Search returns non-Youtube sites even with strict SafeSearch.

This is easiest to check by using the "-site:youtube.com" parameter, but they also show up for certain queries (try "news") or if you scroll far enough down the page.