The best carry holsters tend to build to order like FIST, Comp-Tac, Crossbreed and Raven get great reviews, and there are some people on THR that make some great holsters as well.
For a gun like that one (whichever it turns out to be) I like the thin or ultra-thin Kydex like FIST makes, nice retention, don't take up a lot of real estate in your waistband, reholstering is easy and uncomplicated, the draw is typically pretty easy. I always found leather holsters to either be large out of waistband open-carry types or drag while drawing.
I like the pop and snap of thinner Kydex's draw. Gun won't go anywhere until you pull on it, and the holster isn't bringing your belt up your side with it.