Literary agents can be a great resource. If they like your short stories, they can help you find publishers who might be interested in buying the rights to your stories. You can find literary agents through online directories or by attending book fairs. Also, some local bookstores might be interested in stocking and selling self - published short story collections if you approach them in the right way.
One option is to look for independent publishers who might be interested in your work. Another way is to enter short story competitions, as some offer publication opportunities as prizes. You can also self-publish on platforms like Amazon Kindle Direct Publishing.
You can try selling your short stories on online platforms like Amazon Kindle Direct Publishing or Smashwords. They provide opportunities for indie authors to showcase and sell their work.
You can't really sell sexually explicit short stories easily. Such content is usually not accepted in the mainstream market due to legal and ethical reasons. It's advisable to focus on more appropriate and legal forms of creative writing.
You can try selling it on online platforms specifically for short stories, like Wattpad or Medium. They have a user base interested in various genres, including sci-fi.
You can try submitting your short story to literary magazines. There are many out there that accept submissions from new writers. Research ones that match the genre of your story, like if it's a mystery, look for mystery - focused mags. Follow their submission guidelines carefully, usually including proper formatting and a cover letter.