there are so many dramas with those genres
- all the dramas in IQIYI's "Light On" series (haven't watched these dramas yet but they are popular and highly rated for being really good)
- A Murderous Affair in Horizon Tower (mystery, crime, dark and sad)
- Never Say Never (police undercover stuff, crime, mystery and action)
- The Listener (crime, mystery, dark vibes and interesting cases plus a tiny tiny bit of romance)
- Tientsin Mystic (bit of horror, mystery, crime, thriller, mystical plus a bit of comedy)
I've also watched Missing Persons and enjoyed it. The above drama recommendations are dramas that I personally enjoyed and would recommend.