Lammes Texas Chewy Pralines are very good. We sent some to my Mom for Mother's Day and she was generous enough to save one for me to try when I visited. However, these aren't the traditional New Orleans style praline. They are much more like a Turtle (by other candy producers). The nice thing is the caramel is soft and melty, not stick-to-your-teeth chewy.
For the more traditional style praline, I can't be much help. I've had some really good ones around here, but all of them have been from little Mexican restaurants that sell them at the counter as you leave. Good luck!