I'd check out "Raven Concealment." I was pleasantly surprised by their "Phantom" model. Kydex, perfect retention, perfect concealment adjustable & surprisingly comfortable. They have another model that is even more versatile - I think it's called "Eidelon."
if you don't know what you want, see if you have friends that will let you try some holsters, while the OWB is a faster holster, it doesn't conceal as well as a IWB holster, anyway you are going to end up with boxes full of holsters that didn't work for you.
Check out these guys: Comfortable leather belt holster, closed muzzle - Falco Gun Holsters
They custom make holsters for almost any handgun. I ordered a nylon holster for one of my handguns and was very satisfied with the craftsmanship quality. The holster fits my CZ P09 like a glove. Although they did not have this particular handgun model on their online list, I enquired and they made it to fit my gun. Falco's holsters are not expensive either. The next holster I ordered from them was a leather one for my HK P30L. I have not received it yet, it takes over 40 days for them to manufacture and ship a holster. I think they make holsters in Slovakia. Again, I am very impressed with the nylon holster quality. Hope that the leather one will be the same good work.