It depends on what I'm wearing, what I'm carrying & where I am going.
My Sigma 40v is my usual CC.
If I am wearing jeans or wearing a jacket I use a Tagua IWB leather holster.
If I am wearing sweats, or shorts, and even my business suit, I use a Smartcarry deep concealment holster.
When I use my S&W K frame .357
I usually open carry because it is a 6" barrel. I use a Safety-Speed Gun Rig.
I do have an uncle mikes nylon shoulder rig for it, but I rarely use it as it is uncomfortable to carry a cannon under my arm LOL.