Potential "new wave horror" in literature?

Hi guys. I'm a big fan of horror movies. Specifically good, aesthetically pleasing, conceptually consistent, wise horror movies. I fell in love with the so called "new wave" of horror movies - if you've seen popular films such as "It Follows", "Hereditary", "The Witch", "Get Out" etc., you know what I'm talking about.

If it comes to literature, I've always had issues with searching for some new stuff. I mostly read postmodernism, some classics, novels shortlisted for Pulitzer/Booker/National Book Award. I've never liked literary horror, because it never satisfied me, but I mostly read some basics like King, Danielewski's "House of Leaves", Lovecraft, Shirley Jackson - stuff like that and I'm not really a fan of any of these authors.

I know there must be more to horror in literature and there might be some hidden pearls that I've never heard about. So basically, my questions are:

1. Is there some kind of "new wave horror" in literature? If so, what are the main authors of it?

2. Have you ever read a horror that you would consider a masterpiece not of it's genre, but of literature in general?