i don't have any better suggestions that have not already been offered that meet your criteria. however, consider since your criteria requires 6 or more shots any gun you choose will be too bulky for pocket carry. given that you will be carrying this piece in a holster why would you limit yourself to such a short barrel? a 3, or even 4, inch barrel will conceal just as easily as a 2.5 inch barrel carried on the hip.
conversely, if you are going to limit yourself to such a short barrel length why not get a j-frame, or similar, and give yourself the option of pocket carry?
personally, i don't pocket carry (but thinking about getting a 642 so i can) and my personal choice for a CCW revolver is a 3" S&W 60. i chose to give up the 6th shot for the narrower cylinder and lighter weight but wanted the additional barrel length for the small increase in velocity and the additional sight radius. many will argue the velocity and sight radius are not relevant in a defensive situation but since i carry in a holster i don't give up any conceal-ability with the longer barrel.
steve