While I enjoy “classic horror” films, alot of the modern ones fit under the “horror/slasher” genre.
That is where I find franchises like Elm Street, Friday 13th, Saw, Halloween, Hellraiser, etc, are.
I personally don’t find them enjoyable to watch.
Alien (1979) – great atmosphere.
The Thing (1982) – had great suspense.
Besides, I found most of those slasher films to be too repetitive. Same MO, different people. The villain never really evolves. All we know is a little bit more of its backstory, but that is it, IMO.