Many years ago I collected short stories I enjoyed in an Evernote list. Here it is if you want some inspiration. :)

Asimov, Isaac - "Nightfall"

Asimov, Isaac - "The Last Question"

Barthelme, Donald - "Some of us had been threatening our friend Colby"

Beckett, Samuel - "That Time"

Bisson, Terry - They're Made Out of Meat

Boyle, T. C. - The Hit Man

Carver, Raymond - Little Things

Chekhov, Anton - "The Bet"

Dick, Philip K - "We Can Remember It For You Wholesale" Gibson, William - Dogfight ("...he had nobody to tell it to. Nobody at all.")

Hemingway, Ernest - The Short Happy Life of Francis Macomber

Hemingway, Ernest - Hills Like White Elephants

Makkai, Rebecca - "The Briefcase"

Bradbury, Ray - "The Veldt"

Saroyan, William - "Seventy Thousand Assyrians"