Please write a single answer per comment to clearly see the most popular tools. Vote on the ones you like.
There were too many options in this post and I want to see what are the really interesting ones.
To complement this post:
What file-sharing and media organizing software do you wish that existed?
Not sure what you are asking for, but one thing I can recommend is that for qbittorent to go to settings > Advanced > Network Interface to tie your VPN to the client. This will help in the event your VPN cuts out reducing chances of your IP address leaking.