One can’t carry a concealed weapon without having a concealable weapon. Some are suitable for the concealed carry task, and some are not.My personal favorite illustration of that last point, conceal-carry of a full-size handgun, is Clint Smith of Thunder Ranch. Clint's choice for a pocket pistol is a S&W 29 .44 Magnum 4"-barrel wheel gun with a bobbed hammer. Obviously Clint likes cargo pants with great big front pockets.
We can’t cover every possible choice here. A swing through the Krause catalog will show you whole books on the 1911, the Glock, the SIG-Sauer, the Beretta, the Smith & Wesson series, etc. al.
Other good choices from Paladin include Living with 1911s and Living with Glocks by Robert Boatman, and the outstanding The Snubby Revolver by Ed Lovette. I think Lovette’s book should be read by anyone who owns or is thinking of owning a “snub-nose.” It puts the whole genre in perspective.
The competent shooter loses little going double action only with a snubby. This old M/36 Chief Special with Herrett stocks made 5 out of 5 head shots at 20 yards single action (left) and double action (right)
As noted earlier, it’s more convenient to have a “wardrobe” of concealable handguns, but it’s not entirely necessary.
Generations of young cops have learned that it’s cheaper to buy a concealment holster for their full-size department-issue service handgun than to purchase a whole new gun and leather set for off-duty carry.
Similarly, many armed citizens have learned that the full-size handgun they bought for home protection is concealable if they set their mind to it.
As Clint sez, "It's a big gun when I put it in my pocket and it's a big gun when I pull it out."
Sorta like the famous saying that everybody wants a .25 ACP to carry but a .44 Magnum when they pull it out. But I gotta admit, I ain't man enough to tote my Model 29 in my pocket.