Avoid the heavy official Youtube site...and no ads before the video starts. The link will bring you to the page where you search for youtube videos. Use the search function at the top. https://www.bing.com/videos/search?q=Y ... ORM=VDMHRS
Just checked: I can also play Dailymotion, Vimeo and ok.ru videos (probably other video sites too). Quite impressive.
Further info: An online site which can download videos from a lot of sites (also checked right now with youtube, dailymotion and ok.ru is: https://9xbuddy.com/
Unfortunately there is now a sex ad which jumps up after a few seconds but other than that it's excellent. Edit: I've been able to block the ad easily with ABL.