search engine video results by site?

Are there any search engines that search alternative video streaming sites? I am trying to get away from the major video streaming site for reasons I am not willing to discuss here. I can add '-(sitename)' to a search to eliminate the undesired site, but the results seem to show results mostly on Vimeo and dailymotion when using duckduckgo and ecosia. There are other sites included, but some of the alternate sites seem to be missing completely.

Thank you for any suggestions

If you know the specific site you want to search, DuckDuckGo can find it:

search term site:thisisthesite.com

Thank you Douglas. This is the method i use to search many sites including permies because I believe the results are often better and easier to navigate. I guess I could search different sites individually using this method, but it would be nice if the most relevant videos showed up regardless of site that hosts them.

This approach of searching my favorite sites individually in addition to the default search, is likely to be my approach to find appropriate content