Yeah, it’s six. Sue me.
Blood Debts by Terry J. Benton-Walker (YA)
Death Card by Jasmine Walker (YA)
Looking for a Sign by Susie Dumond
Things We Lost to the Water by Eric Nguyen
The (Most Unusual) Haunting of Edgar Lovejoy by Roan Parrish
Sister Holiday Mysteries by Margot Douaihy

Bonus: These are all set in the actual city, but for a New Orleans-inspired YA Fantasy setting, check out Her Sharp Embrace by Kate Koenig
Double Bonus: For books partially set in New Orleans, check out Tramps Like Us by Joe Westmoreland, The Holiday Trap by Roan Parrish, and How Does That Make You Feel, Magda Eklund?by Anna Montague
