The Taoist Priest Who Became a Police Officer

Ghost Hunting and Taoist Stories, No Female Lead, but a Male Lead Is Fine

Mystery, Ghost-Hunting, No Saintly Protagonist, No Harem

Mystery and ghost hunting, with a decisive protagonist and no harem.

Any Supernatural Stories with Ghosts and Monsters? Zombies Would Be Even Better*

Urban Stories About Jiangshi, Maoshan Taoism, and the Like

I remember reading a novel called The Strongest Zombie King of Mount Mao. It was pretty good, but I cannot find it anymore.