PTP is having some troubles right now, but I believe you can join almost anything with good reputation. Even lower tier trackers are better than public trackers IMO, people still care more and feels better to contribute, its probably bit more safe as well
Consider moving from mullvad if you are into torrenting. Mullvad doesnt support port forwarding anymore. But no matter what provider you chose, use docker container gluetun to route traffic from any other container (like transmission). I like transmission, but most people use qbittorrent because its more advanced. You can also set up VPN in qbittorrent settings
Real debrid and usenet seems awesome, but I never tried that just because private trackers are working perfectly fine for so many years. Building ratio is not easy on every tracker, but some of them are a joke. Lot of them reward you with points if your torrents are just active and then you can buy upload with points. OP didnt ask for movies or tv shows source, but most likely its their interest. Private trackers can provide more than just a video content, but yeah if you dont want to keep your PC online to keep seeding its probably not best option. Id rather pay for VPN and donate to trackers that share loot for free tbh, but its not for everyone
It will move files to location you have set in category settings. If you are using sonarr it can automatically set tv-sonarr category and then qbittorrent will move it to your tv shows folder.
It takes some time to figure out, but basically you need to:
Install docker and docker-compose
Install portainer (optional, but my recommendation. Its docker app that provides simple GUI to manage all other docker containers)
Create docker-compose with configuration for qbit and gluetun, then load it in portainer using stacks (look for examples on google or aks again when you get to this part)
Done
Alternative is just setting VPN in your existing qbittorrent. Never tried that, but you should set everything using qbittorrent settings I suppose
Honestly, I was never looking for one, but friend of mine suggested me some local guy. He moved to another providers but Im using the same one for years. Friend told me my guy is bad, but its not for channels I need (I guess lol). Anyway he is finding new providers on forums by direct messages, but also on some random google search or reddit/lemmy recommendations for example. Anything is safe to try afaik, you usually get free trial for 3-7 days. Its best to test when its time for some super popular foodball match or something like that
After you find a good provider, check out android app TiviMate. Its not free, but its amazing. Its made for android TV and it cost 11€ a year or 35€ lifetime iirc