@atomicpoet I used to like one that aggregated searches of multiple engines. I use duckduckgo mostly these days.
Searches are expensive for sites b/c database searches are resource hogs. YouTube charges partner apps/sites a lot for searching beyond a trivial number. Hard 2 run a site where users create playlists if you can't search.
I'd like to see more players and any better methods of retrieval the clever among us can come up with.