Start with high-confidence the occult & supernatural books, then narrow by subgenre or adjacent topics.
The Beautiful Thing That Awaits US All
Laird Barron, Ray Porter
Entropy in Bloom
Jeremy Robert Johnson
The Alchemist
H.P. Lovecraft
The Haunter of the Dark
H. P. Lovecraft
The Dream Quest of Unknown Kadath
The Lurking Fear
The Unnamable
The Nameless City
H. P. Lovecraft, Adriel Brandt
Crown Rose
Fiona Kai Avery
The Ghost Stories of Ambrose Bierce
Ambrose Bierce
Kwaidan
Lafcadio Hearn
The Creature From Cleveland Depths
Fritz Leiber
In Darkness Waiting
John Shirley
City Come A-walkin'
John Shirley, William Gibson
The Diamond Lens
Fitz-James O'Brien
The House in the Valley
August Derleth
Dunwich Horror
