Henry James

Edgar Allan Poe

Washington Irving

Mary Shelley

Robert Louis Stevenson

Oscar Wilde

Bram Stoker

Nikolai Gogol

Sheridan Le Fanu

Arthur Machen

Gothic Horror is one of the oldest of the horror genres. Darker, edgier and on the Romanticism end of Romanticism.
In addition to being important to the horror genre, the first scifi, fantasy, romance, mystery, and adventure authors drew inspiration from Gothic horror, so it's sometimes considered the parent of all modern genre fiction.

Content:
Mary Shelley: Frankenstein 

Bram Stoker: 
Dracula 
The Judge's House 

Oscar Wilde: The Picture of Dorian Gray 

Robert Louis Stevenson: The Strange Case of Dr. Jekyll and Mr. Hyde 

Edgar Allan Poe:
The Tell-Tale Heart, 
The Pit and the Pendulum, 
The Cask of Amontillado, 
The Masque of the Red Death, 
The Black Cat, 
The Fall of the House of Usher

Washington Irving: The legend of sleepy hollow

Sheridan Le Fanu: Carmilla

Henry James: The Turn of the Screw

Arthur Machen: The Great God Pan

Nikolai Gogol: The Viy

Richard Williams

David Miles

Peter Coates

Martina Mercer-Hall

Paul Gibson

David McCord

Joe Phoenix

Rick Walz

Strelbytskyy Multimedia Publishing

15+ Masterpieces of Gothic Horror. Classics Collection: Frankenstein, Dracula, The Picture of Dorian Gray, The Strange Case of Dr. Jekyll and Mr. Hyde, Carmilla, The Turn of the Screw and others