I carry a Springfield XDS 9mm and a Glock 26 with pinky extension.
I carry them in an Urban Defender Tactical Holster with single clip
The xds 9mm is a single stack and a little thinner than my Glock 26. I find the xds a little more comfortable to wear than the Glock with it being a little thinner, but I often switch back and forth.
The Urban Defender Tactical Holster is a single clip Kydex holster that is extremely comfortable. I have Galco, Alien Gear and Raw Dog Tactical Holsters as well, but the Urban Defender is the most comfortable by far.
I typically carry at the 4 O Clock position and sometimes Appendix.