AudioLark is an unusual market I came across for stories and novellas, as it's for audio book first with the added possibility of ebook, if the story is not already published that way. One of the attractions is the length: from 8,000 to 35,000 words, although they will consider longer work.
They seem to be looking for most types of romance, young adult, and 'hard' science fiction. Royalties are fairly generous and, after taking a quick look at some of the audio books already on offer, I recognise a couple of the authors published by them.
You can find all details on the AudioLark website. As always, I'd love to hear from anyone who has experience with them, or who submits to them in the future.