I've written an adult fantasy novel which is still unpublished. I'd like to explore reputable venues for publishing an excerpt from the novel, adapted into the form of a self-contained short story. By reputable I just mean that it's not a scam or a vanity publisher, there's a selective vetting process, and at least a few people will read it if it gets in.
Monetary compensation is not important, but perhaps needless to say, it's important that I would retain the rights to the material so that I can still include it in the novel which I hope will eventually be published.
The length of the adapted short story would be in the neighborhood of 10,000 - 13,000 words.
To give a sense of the sub-genre: It takes place on a world that isn't Earth, which is ruled by warring magic-wielders. The world has some futuristic technology, but the world still feels contemporary to ours in many ways, and the technology is more a part of the setting than a determinative part of the plot.
Does anyone have suggestions? I'd be grateful!