My Walther's fit almost anything I put in them. My PPS SC works OK with a paddle holster made for an SA DX.
I mainly carry my SIG 250 Compact with a holster from SIG.
I carry the Walther PPS for more concealment as necessary.
I have several others That sometimes don't need special holsters at all.
I have a full size Kimber 1911. I usually don't holster it, It is a beautiful piece. I seldom shoot it. It just stays in the case.
I have a Taurus 5" revolver for plinking. I have carried it on the left in a holster not made for it but works. Usually I just throw it in the bag and go off to the range.