Elm Books has posted two anthology calls for 2017 and both are for mysteries.
The first is "Death by Cupcake" and they're looking for cozy mysteries of 2000 to 10,000 words that features a cupcake somewhere in the story. The deadline is January 1, 2017 and payment is a royalty split.
The second is "Undeath and the Age of Steam". For this one they're looking for mysteries up to 10,000 words in a Steampunk setting. The deadline is June 1, 2017 and payment is a royalty split.
You can find the guidelines for both here.