Historical Fiction Short Story Q

While writing my novel(s), I've been toying with the idea of doing a short story idea about Queen Artemisia (one of the few female naval commanders in history) or Pheidippides (the original Marathon runner). But short story historical fiction doesn't seem that popular. Does anyone have any suggestions about where to submit such a story online or offline? I know about Paradox Magazine, but a quick Google search didn't help much beyond that...