Check out this list of venues, courtesy of louisianaradio.com
Or you might check these schedules from cajunzydeco.net
I can't say that I am a true expert but here is my opinion ~~ the REAL thing will be found out on the prairie, and not in NO. If you have time, go to Eunice, Oppalousas, Crowley, Lafayette, etc. Of course, if you HAVEN'T got time, you can "make do" in New Orleans!