I'll list a few things I liked about the books mentioned above, maybe someone who likes similar stuff can recommend books that contain some of the criteria:

Lolita:
> unreliable, obviously mentally ill narrator who presents his delusions as fact and tries to manipulate the reader into believing his narrative
> the contrast between the superficial descriptions and the dark subject matter
> the fact that I had to put the book down at times just to take a breath and step back from Humbert's POV

Young Mungo:
> the cold detached narrator who sounds more like he is narrating a wildlife documentary
> the few good things that happen are immediately contrasted with more violence and dark subjects
> the description of environments and people

dunno I just read both of these books recently and want more similar stuff