I grew up on SF short story anthologies. To me, the short story is the essential vehicle for raw ideas. And it’s such a great way to discover new authors.
You could win a future vacation on the moon or 10k right away with those books irc
Philip K Dick was the master of the bizarre unexpected twist. I remember Colony terrified me - an alien predator with perfect camouflage abillities. The victims get into a car, for example, only to discover it's actually a predator's digestive system.
Clarke and Asimov were more visionary and Bradbury had some dark visions,