To be clear, this is just a joke, and I don’t look down on direct downloading. It absolutely has its place, and sometimes I do it myself if it’s just faster to download a file directly. Torrenting is just so much more convenient, though, especially when using Jackett’s manual search.
Jackett comes preloaded with 574 indexers, and none of the ones I use are private. All of mine are public indexers, you just have to know the names of some popular torrent sites. I discovered half the indexers I use from people on r/Piracy (before the migration) talking about how much they like how they work. That’s how I found Idope, Knaben, and Torlock. Others, like 1337x, Nyaa.si, LimeTorrents, and EZTV are all indexers I was familiar with as I had used them personally and recognized them when I clicked into the “add indexers” drop-down on the interface. Barring all that, you could just ask someone else to send you a screenshot of all the indexers they use on their Jackett setup. Here’s a list of the ones I use. Adding indexers to Jackett is basically the easiest part, and you only have to do it once.