There's a Canadian film called The Void from a couple of years ago that you might like - it's similar to The Thing in some ways, but with more of a Lovecraftian cosmic horror vibe:
I enjoyed this
It had quite the emotional impact as well as people being CHOMPED.
The Birds is my favourite Hitchcock. Another example of being an amazing film as you forget it’s actually about killer birds until they turn up halfway through.
REC. and Get Out also great choices.
On the subject of classic horror, I recommend Rear Window. Old Hitchcocks can be a chore to watch now in terms of being actually scared because they are so from a different era. But as far as psychological thrillers go, I don't think Rear Window can be beaten. It's the cornerstone for less is more cinema for me. Absolute genius and so beautifully made. I prefer it to his other big 3 (Psycho, Vertigo and North by Northwest)
Rear Window is only my favourite EVER film.
I far prefer it to Psycho, but I adore Vertigo and North by Northwest though. Rear Window has *everything* though.