Ruby is a big one for me, just a casually weird ghost story set in a drive-in theater. They were already mentioned in the replies but Legend of Dinosaurs and Monster Birds, Horror of Party Beach.
Burger Snail
I need your recommendations for Summertime Horror movies!
Doesn't have to be Summer Camp slashers or aquatic horror but certainly can be. Just anything that feels like nostalgic summer fun, or sweaty, greasy gross stuff. Alien abductions. Weird creatures. Deserts. Maybe even some erotic thrillers?