Hit a bunch of horror movies:
Ghostwatch still holds up, I think. Their fake outs and misdirections work well, and I enjoy the more subtle and subdued kinds of ghost stories, so all the buildup had me going.
The Stone Tape was alright but frankly I was distracted the entire time because everyone was YELLING and ACTING and PROJECTING LIKE THEY'RE TRYING TO SPEAK TO THE BACK OF THE THEATER AND NOT INTO THE BOOM MIC. Maybe it was the equipment, editing, or compression but it made watching the movie distracting.
The original McPherson Tape also holds up. A 1989 found footage horror movie about a family under attack from aliens. The background is actually also a fascinating example of budget being the mother of invention. He only had the cabin for one night, so he hired local actors who could improv, pretty much did everything in one take, had to be the cameraman because he couldn't afford a monitor, and also had a radio cueing up the lights and aliens. But it holds up as the terrible visual quality hides the faults and no one is speaking like they're being filmed. For example at the start, their big family dinner devolves into each half of the table having their own conversation while the camera is in the middle in a natural way.
Also they thought it was lost when their distributors warehouse burned down with the master but then a copy somehow survived and they spread into the 90s UFOlogy scene without any credits or hint it was fictional.
The 1998 remake is far more riffable. It still has its good moments for sure, but you can immediately feel the difference in delivery and odd scenes to try to stretch it out to a TV movie runtime. And there's portions where subtlety goes out the window as their "expert interview" segments just state what's being implied.