I don't know what kind of horror films you like, but I enjoy the slow-burn thriller suspense types. Here are my favourites:
- Silence of the lambs (or any of the others - Red Dragon, Hannibal, Hannibal Rising)
- Misery
- When a stranger calls (don't watch the trailer, it spoils the whole plot of the film)
- Purge 2, 3 (not Purge 1 and I haven't watched the first purge yet)
- Get Out (if you haven't watched this - WATCH IT)
- Any SAW film (the new one isn't quite as good)
- Would you rather (not really a thriller, just a gore)
- The invitation
- Circle
- Nightcrawler (not really a horror but my favourite film of all time)
None of these are your sh***y jump-scare films, they are more thriller/suspense. If you want one of those ones that use jump-scares instead of actual suspense, watch something like ghost stories i guess but I can really recommend you film types i don't like