I read a lot of reviews and book announcements and I can’t keep track of all the new series that seem be aimed at very specific audiences. There have always been the Southern Cozy mysteries, or the Scandinavian police procedurals. Lawrence Block has a gentleman burglar mystery series. And for awhile you have been able to find quilting mysteries, knitting mysteries, antique store mysteries, cooking mysteries and even shopping mysteries.
The newest books seem to be created by a sort of “Mad Lib” approach to plots. Sandra Hill has written a romance called Kiss of Pride about a Viking Vampire Angel. Diane Kelly has written a series about an IRS agent with bad hair (the one in the system is Death, Taxes and a Skinny No-whip Latte.)
What combination of subgenres would you like to read? Or what can you imagine? You could combine time periods, places and professions as well as idiosyncracies.
Meanwhile try some of these good niche series:
Victoria Thompson‘s Gaslight era midwife in New York City
Ariana Franklin‘s female coroner in Henry II’s England
Margaret Maron‘s North Carolina female judge
Arthur Upfield‘s half-cast Australian aboriginal detective