For the most parts, movies and tv shows is generally safe. It's really difficult to do anything from a media file (.mkv/.mp4) and as long as the torrent doesn't contain any other weird files you're fine.

It's with software and games that you really need to be careful. For software, I would recommend m0nkrus releases from rutracker.org . Google translate the comments on any release and you will see whether any release is suspicious.

Games on the other hand is very hard. There are a bunch of really popular sites that will include some sort of crypto software and other questionable stuff along with their games (igg-games comes to mind). The only public space I trust to get games from is fitgirl-repack.site (this domain is the only official one). Other than that, I only trust GazelleGames but you have to find a way into that and I'm not gonna say it's hard but its definitely a bit of effort to join.