I've been rewatching at least one of Michael Flanagan's horror series every year. Haunting of Hill House is my fave, but there's also Haunting of Bly Manor, Midnight Mass, Midnight Club, and Fall of the House of Usher. And a movie or two of his.
I try to make my own version of some popular fall food or drink. Like pumpkin spice whatever, apple cider doughnuts, sweet potato pie.
I don't get trick or treaters, so I like mooching off friends. If someone has a super low key "party" where I can throw some candy at kids with fun costumes that come to their door, I'm there.