I personally use Cleanuparr, but the idea is the same. It monitors your downloads, and issues strikes for anything that fails certain criteria (like being stalled, or downloading metadata, or downloading too slow). If a download collects too many strikes, Cleanuparr will remove it and automatically tell the *arr service to block the download and retry the search. It also includes file extension blocking, to automatically block and retry the junk “Fantastic_Four_First_Steps_(1080p).mkv.exe” types of scam posts.

Unfortunately, the Sonarr devs have specifically said that they have no interest in including a “delay searching until after the official release date” option. Their response to the issue has basically been “use better trackers where those fakes don’t get posted.”