It's possible to search for videos on Youtube using Google. To do this, simply add site:youtube.com to your query. For example, if you search for:
jazz site:youtube.comYou'll only see results from Youtube that are about jazz. Note that Google also has a video "tab" that only shows video results, but these video results include other websites besides Youtube, such as TikTok.
This same technique may also work on other search engines.
How to Search for Youtube Videos using Google
The query above may end up including webpages in Youtube that aren't videos, such as Youtube channel pages. To search only video pages, specifically, we need a common denominator for Youtube video pages. Fortunately, all Youtube videos have a URL that starts with youtube.com/watch, so we can just use that.
jazz site:youtube.com/watchWith this, Google will only show results about Youtube videos, and not Youtube channels about jazz.