On the most loved and lasting impressions category I find all works by Hemmingway to be my favorites. In the cheap novel category, anything by Dean Koonz. Holds my attention, creeps me out, reinforces my fear of man, and allows me to ignore my wife when I choose to.
Gatsby is the most overrated American novel outside of any POC fiction.
> > > I find all works by Hemmingway to be my favorites.
Then you might enjoy the works of Elmore Leonard, particularly the crime novels.
Here’s one I recommend. Inspired by the ATF Fast and Furious scandal, it’s about a reclusive soy boy who is forced to grow up:
https://www.amazon.com/dp/0997539518