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Sharing Work
(beehaw.org)
A specific community for original shortform and longform writing, stories, worldbuilding, and other stuff of that nature.
Subcommunity of Creative
This community's icon was made by Aaron Schneider, under the CC-BY-NC-SA 4.0 license.
Well, it's not that hard to actually self-publish via Amazon, Lulu or IngramSpark for example, but getting your work distributed is another story. However, that's an issue with any platform as far as I'm aware of.
Now, for other options, the most obvious one is to start a blog, and you can do that with https://paper.wf for example! Which is a federated blogging solution.
Some mainstream options you have are:
And you can post here as well! :)