I just finished White Collar for the third time lol. It has to do with white collar crime, nothing gruesome for the most part.
Also a big fan of Peaky Blinders, but obviously it's dated way in the past so I'm not sure if you'd like it. Other crime shows I love are The Blacklist, FBI: MW, Criminal Minds, Quantico, etc. A couple have ended but they are very good imo.