What is considered to be the best set of programs needed to download torrents securely ?
What torrent client is the best?
What VPN if any is the best?
What other programs if any is the best?
3 points
It is an anonymity network similar to tor if you have heard of that. I would recommend playing around with i2p+ to get started with it. You should be able to get it from here: https://i2pplus.github.io/