qBittorrent has a built in tracker for private torrents https://www.ghacks.net/2019/09/20/how-to-create-a-private-to... this method will also not leak information into the DHT though 99% of the time you don't care about that.

Almost all BT clients can create torrents. You can use a public tracker if you want, or you can use a magnet link (DHT magic will find the peer eventually), or worst-case scenario you can manually add the peer IP on either end.

With transmission-create you can create a torrent from the commandline. Load it into your bittorrent client, find its hash in the UI, and make it into a magnet link, like:

magnet:?xt=urn:btih:[this is where the hash goes]

Example:

magnet:?xt=urn:btih:a008663c4fc7e710bd59200e5ef99ba04f83f319

There's tons of available trackers. Just use whatever one you want. Also most clients can create torrents.

transmission is pretty complete and easy to use

+1