Have you thought about where IWB you might carry? Most folks find between 3:00 to 4:30 works best.
Please do not try to carry in the small of the back, google it and see why it's a bad idea.
So, Single or double clip? Leather, Kydex, or hybrid?
I have in my carry rotation a Ruger LC9, holster I use depends.
I have a a problem arises dbl clip for 3:30 ish.
A N82 2:00 or 3:30
A Remora for AIWB, usually crossdraw.
A Remora Micro, same.
And just ordered a Clinger Atom for grins.
Whatever holster you choose, it won't be your only.
And get a good Gun Belt. It makes all the difference.