I carry a Sig P220 in a Jackass shoulder rig. Love it. Most comfortable rig I’ve tried, and I’ve tried a lot. When I can’t carry that, I carry my Kimber RCP in a small-of-the-back IWB holster. When I can’t carry that, I carry that RCP in a leather pouch (or small satchel) made by Saddleback Leather company. The Saddleback pouch also clips nicely onto the outside of my briefcase.
There just is no one best carry option. It depends on too many things... What you’re wearing that day, what the weather is like, where you plan to go, what you plan to do... There’s no real alternative than just getting lots of different products, and switch out as needed day to day. Not only different holsters, but different guns.
Whoops. Sorry about that.