I would go with the Ruger SP101 or S&W M60. The GP100 and S&W 686 are a little large for carrying concealed. That's not to say they can't be concealed,you're just more limited. A shoulder holster or IWB under a coat would work. An SP101 or M60 can be carried in larger dress pants sized pockets. (Wranglers are a little tight
)