I have 2 holsters for my SR9C. Both of them are Blackhawks. One is an IWB, soft case generic holster. The second is an on the belt/pancake holster. Hard plastic specific for the SR9/SR9C with a trigger guard lock. Both are comfortable wears.
The Mitch Rosen offered on shopruger.com is going to be hard to beat. I like how it pulls the grip in close, better than the Galco Concealable for my G19. I hated to spend $75 but I am glad I did. I can conceal my SR9c with an untucked T-shirt. Whatever holster you choose, it is very important to have a good gun belt. If you are on a budget, take a look at Duluth Trading Co.'s Lifetime Belt for $60. Have fun hunting.