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?
As the post said, it’s got a lot of details and options you can fiddle with. qBittorent’s got it beat with its search option though. Tixati has that, but afaik, that search only looks for files between Tixati users.