on Just Publishing Advice:
Can you self-publish short stories on Amazon KDP? Yes, you can.
There are many sites online where you can publish your short stories for free. If you are a new writer, it’s a great way to find readers.
However, if you want to earn money from your writing, self-publishing your short stories as a Kindle ebook is the best route to take.
Before you jump in though, you need to make sure that your short story ebook complies with the Kindle Direct Publishing (KDP) guidelines.