Sorry, not enough information to even know were to begin in trying to answer your question. The good news is the P938 is small and light, so will carry well and comfortably in any number of holsters and in several locations on the body.
Your holster decision will be predicated on your body type, what kind of clothes you wear through the seasons, accessibility when driving and a whole lot more.
I suggest not worrying too much about a combo holster, as a small mag pouch can go elsewhere and that requirement *will* limit your choices.
Oh, and welcome from NV!