If you like policiers, or crime procedurals, you’ll like the 87th Precenct series from the writer Ed McBain (pen name of Evan Hunter, who wrote the book The Blackboard Jungle that the movie was based on).
Unlike the usual “hard-boiled cops” type books which is mainly about the crime and how it’s solved, this series pulls you into the lives of the detectives on the job and shows empathy for them, even a couple of officers who are straight-up nasty pieces of work. There’s even a recurring master criminal that the boys and girls in blue have a problem apprehending through the series.
I enjoyed them, and was sad when Mr. Hunter died in 2005. :(