https://github.com/Jackett/Jackett
Qbittorrent uses plugins to the sites themselves (including to the local Jackett instance via an API):
https://github.com/qbittorrent/search-plugins/wiki/Unofficia...
And it's what I use to search for torrents.
I would never trust a site without an adblocker and keep uBlock active in Private Mode.
But with all this, you need to know what you're searching for, browsing for content is another story
This setup downloads everything for me once a movie or episode becomes available to download, and then I only watch content that is already downloaded using VLC. This is pretty good specially if your Internet connection is a bit spotty at times.
I've been using this setup for years now, and I'm pretty happy with it.
[0] https://sonarr.tv/ [1] https://radarr.video/ [2] https://lidarr.audio/ [3] https://github.com/Jackett/Jackett
Jackett. https://github.com/Jackett/Jackett
I'm not aware of any notices filed against that specific project.