For CCW carry, it's hard to beat the Milt Sparks summer special, for duty use, you want the holster that has the best retention that you can still get a really fast draw from. Try seveal different one's till you find what works the best for you.
For CCW carry, it also depends on the clothing you wear and the time of the year. When you have a coat on, just about any holster can be hidden, when it's T shirt weather, you might have to make another choice.
Go to your local gun shop and try different holsters until you find the one that fits your body the best. Being thin vs. heavy weight makes a difference.
Best Regards, John K