I write short stories for clients, and for myself, under a number of pen names. I use pen names to experiment. If you use a different pen name for each genre, you can easily track what succeeds, and what doesn’t. As I’ve often said, Kindle is wonderful for researching markets. If you get readers for a short story in a genre, you may consider writing full length novels in that genre.
One from the archives: useful information for you today, if you write fiction.