I have tons of great suggestions depending on your hardware and what kinds of things you’d like to be hosting.
However, for starters, if you’re not doing so already, make sure you are binding your qBittorrent container to a privacy VPN network interface. Test it to ensure it’s working. There are sites out there that you can use to check how your torrent IP presents. No matter what you’re torrenting, keep your IP hidden. The last thing you want is your ISP to terminate your fancy new service.