If you have a desktop computer, you could run a Jellyfin mediaserver.

Torrent media and run your own personal Netflix.

Look into apps like radarr, sonarr, prowlarr etc, there are lots of guides online.

Soulseekqt for pirating music and host your own Spotify with navidrome. (Or use jellyfin has a music player as well).

If you want to selfhost a full jellyfin webserver on the wider internet and not just your local network, you can look into cloudflared Argo Tunnels, which will allow you to selfhost even if you have a dynamic IP.

This is a little more advanced than just local hosting, but feels pretty epic when your friends and family all cancel Netflix and start using your Jellyfin server instead.

Grats on going degoogled, btw. It's a tough bandaid to rip off, but so worth it.

Oh! I got some great recommendations!

I use:

• ViMusic for music (free, don't quote me but I believe it uses Spotify and YouTube APIs for music?)
• OpenBoard for keyboard (I found a GitHub Fork that included swipe to text but can't remember the name - doesn't work great anyways)
• Checkout LibreTube as an alternative to NewPipe
• LibreTorrent for torrenting (kinda buggy sometimes but better than any other FOSS alternatives)
• UntrackMe for redirecting site links to privacy-friendly frontends (YouTube->Piped, Reddit->libreddit, etc)
• Quillnote for notes (its simply the best, I have tried a lot of other note apps)
• Checkout Magic Earth (it's not FOSS but it takes a strong stance on privacy and uses OpenStreetMaps)
• Trusty ol' VLC Media Player

Ente offers E2EE photo backup (and a 2FA app). If you used google photos before, ente offers one gigabyte of photo data for free.

Mozilla Thunderbird and ProtonMail are some good apps for managing email. I've also heard good things about FairEmail but have not used it myself.