Hm... maybe you could try some Stephen King? He's great, but I know he isn't everyone's cup of tea. His vampire novel is called Salems Lot.
There is also the Vampire Hunter D series by Hideyuki Kikuchi, but that is a bit hard to come by at times and can be a bit confusing.
Then we have Poppy Z Brite, who wrote the amazing Lost Souls! But if you don't like same sex couples and over the top gore, this is not for you either.
Then there are vampire anthologies! There is The Giant Book of Vampires, Vampire Stories by Women, Vampire Archives vol. 1 Blood Suckers and 2. Fangs.
Of course, Dracula goes without saying. There are MANY more, I suggest you look at this nice little site here for more books:
Vampire Book Lists and Guide | The Vampire Library
As for horror, I recommended more Brite and King books (ESPECIALLY Misery), as well as John Dies At The End (very strange and interesting!), World War Z (zombies), and American Psycho.