Honestly as a German, torrenting seems to be way too risky. Internet providers will immediately cave when they are contacted about an IP adress they control and there are multiple law firms whose only business model seems to be sending out c&d letters.
Hats off for our poor German friends. It's definitely not easy over there, but if you do the private torrent tracker + VPN combo, you can be relatively safe.
Rightsholders have seeders sitting in public torrents to grab IPs to sue about. Private trackers are essentially a "club" that only invites known users, (friends of friends) and as such, fewer (not zero) rightsholders are able to join, and as such, fewer instances of being referred to a lawfirm simply because there isn't anyone in the swarm who is a rightsholder who only wants your IP... because they don't invite those kind of people most of the time.
Rightsholders like how hanging fruit like public torrents. Private trackers help take a lot of the stress away.
However, I don't know how it works in Germany so maybe rightsholders over there are more zealous.
Yikes :( that's brutal. You could use a seedbox and encryption? I think that would mostly circumvent that issue. If storing it locally isn't a concern, then just hosting it on the seedbox and connecting services like Plex to it works as well.