Not all great horror is just the classic stuff. There’s some really good modern tales as well. Vampires have redeemed themselves from Twilight hell with the current season of American Horror Story and the excellent Chapelwaite.
Chapelwaite is a really excellent expansion of the Stephen King short story Jerusalem’s Lot. I don’t want to spoil it for anyone that hasn’t seen it, but I will say that it does well what any horror show should, which is fill you with relatively constant dread.
There are some older little-known movies that I consider gems even though production maybe lower than that say on The Exorcist or The first (and only good) Amityville Horror. Case in point, The early 70’s film The Brotherhood of Satan. The dialog is far better than the dreadful films of the 90s, and Strother Martin is surprisingly intimidating in this. Forget cheesy Chucky, this has one of the freakiest evil doll I have ever seen.
That being said, I wish you all a fun and frightful October and Halloween!