Well
I like some of the older horror movies like Friday the 13th 1, Nightmare on Elm Street 1, halloween, Blair witch project, the hills have eyes (the remake is also really good), alien (does it count?), etc.
I watched paranormal activity, but I found it super boring, un-scary, and lost no sleep over it at all. It just generally sucked to me.
The first insidious movie was pretty good, but the sequels got progressively worse.
The conjuring was actually one of my favorites. It’s one of the few modern horror movies with an actually good concept that didn’t abuse jump scares. Also, it’s based off an actually true story, which is cool. Anabelle looks like absolute crap. Instead of taking the most likely true, actually really creepy story of the Annabelle doll, they made up a boring story that makes no sense, isn’t true, and generally is awful.
Blair witch’s found footage is great, mainly because the actors were genuinely terrified. The other found footage one I love is the Spanish horror film “REC”, which America tried (and failed) to remake with “quarantine”, which apparently sucked beyond compare. Skip it. Watch REC.