I carry my Beretta 92FS occasionally, as well as my SIG P226 which is roughly the same size. IWB works fine, but I prefer three-slot high-ride pancake holsters for a gun of that size, since they tuck the grip up high and close against the body. (I carry a 4" N-frame under a light shirt with a three-slot as well.)
Any quality three-slot pancake holster from places like Galco, DeSantis, or other good leather makers will work just fine.