"World needs bad men. We keep the other bad men from the door." - Rust Cohle
It's not really Marlowe, it's Chandler, of course. He's the one writing Marlowe's thoughts and lines. And they're still excellent.
I don't remember if Turner has a first name. James Sallis is one of my favorite crime authors and the Turner trilogy is very good, even if we never even find out the main character (and the narrator's) name. Turner is, or becomes, a sheriff in a small Southern town and investigates whatever brutality comes up. There are time shifts as Turner reminisces his days as a big city detective and currently serves the small community. Sallis writes so well. It is always a pleasure to read him even if the plot doesn't take you where you expect it, or don't expect it to. I can't decide which one.
Jackie Brown (not a detective, but…)