I carry a variety of S&W J,K, and N frames. On the 'old' Bodyguard J the hammer is almost invisible tho it can be pulled, the others have exposed hammers but with a proper holster its not a problem. Should mention that J-frames can be pocket carried sans holster, especially the Bodyguard (M438) and hammerless M442.
The 1911s are carried C&L and are quite streamlined that way, never a snag, and the smaller ones, ie Mustang, Officers, or Micro size can even be carried in a back jeans pocket (when necessary) sans holster.
The Sigs have rounded hammers which do not interfere (ie Sig P239).
As for holster, I use ankle, IWB, OWB, and/or shoulder holsters, and some of the brands are mentioned upstream.
"Do you get spur marks(sores, pain, bruising) in your side from it?" [Nathan]
No. You just have to find the best location(s) for carry. Some work better than others.
The exposed hammer handguns are much easier/safer to carry than my hammerless striker fired Walther PPS which requires a proper and robust holster because of the lack of any effective external safety (ie 1911 type or other). Hate to part with it, but I will likely be selling my PPS because of this lack of tactical flexibility.