For anyone looking to dip their toes in the seven seas
Soulseek is a peer to peer media sharing network akin to limewire
yt-dlp i a command line Youtube video/audio downloader that does hq
https://github.com/yt-dlp/yt-dlp
KissAnime for streaming anime: https://kissanime.com.ru/
Similar sites that let you stream movies/shows/manga are aggregated on sites like TheBestCouchPotatoList:
You can find most free streaming sites through google/duckduckgo searches or pirating communities like the r/Piracy sub on reddit
Anything else can be found on torrent sites, which are usually aggregated on sites like TheProxyBay or r/piracy
When I mean unpopular I mean like a random 7 hour minecraft stream vod watched by 1 reviewer, a 32 episode podcast with 15 views, etc. Hardly anyone is looking for those, but YT hosts it, and it costs them. Alot of that stuff wont be found on other file share websites, thus its not taking up space or adding costs. I dont mean that they are limited, I agree you can find about anything in the right place, including some of those vods with 15 views.