

Free vpns sell your data. It’s why they’re free. Processor cycles and bandwidth cost money so if you want someone to use their processor cycles and their bandwidth to encrypt and route your traffic through their servers without clandestinely peeking, and using lawyers and advanced security techniques to ward off the police, you gotta pay them.
In order to seed torrents you need to have a port on your vpn endpoint that is accessible to the internet and gets passed to the computer running your BitTorrent client. This is called port forwarding. There are only so many ports, so a vpn provider that offers port forwarding will probably charge more and you might not be able to get certified hood classics like :42069 because someone is already using it.
I use airvpn for torrents but depending on your European country you might not be able to. There are other port forwarding vpns. The cost is cheap, most come out to less than $5 a month.
Most let you run multiple devices at the same time so you might have your computer at home torrenting through the vpn while you’re away at work browsing porno on the toilet connected to the vpn which lets you get past the work content blockers.
So… just pay for a port forwarding vpn.
I tried a lot of the alternatives before switching to a vpn for torrenting.
For a long time I only used private trackers with encryption required and dht and whatnot off. It worked pretty good, especially with traffic shaping on the router.
If you really want to avoid paying money that’s where I’d start. The problem you’re gonna run into comes from how the law is used against piracy, who does it and how.
If I were gonna go that route today I’d set up doh or dot first. Both are free if you want to use mullvads servers.
Good luck.