While the suggestions by other commenters to use Qbittorrent's search functionality combined with add-ons (including one for Jackett integration) is a great way to index public tracker releases, I'd also recommend periodically checking for open signups to TorrentLeech given that some releases are either better seeded there or have higher fidelity video and audio tracks. Some private trackers are even better, but TorrentLeech is among the easiest to join.