I bought a book of short stories at a used book store years ago that was organized by length of the story. But it wasn’t by word count; it was by how long it would take you to read the story. So the first section was titled “Waiting in line at the supermarket” and others were “Waiting at a doctor’s office” and “Commuting on the train” and others I don’t remember.
This website is like that: Short Edition
It’s a France-based company, and the website is in English and French.
You can choose 1-minute, 3-minute, or 5-minute stories. For many non-native speakers, though, you might think of them as 5-minute, 10-minute, or 15-minute stories?
There’s also a section of Classics by century where you can find short stories and poems by such authors as Lewis Carroll (Alice in Wonderland), Shakespeare, O. Henry, and many more.
And according to Mental Floss, they have installed vending machines that dispense short stories. The first one was put in France’s main airport and there are more than a hundred around that country and about 20 in the U.S.