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
Ads is both finite and infinite in the sense that you may count ads, but their volume can also be measured in fractional/continuous ways such as screen space or video length.