Jim,
Welcome to the forum. I really like your 686. My very first S&W revolver was a 686-3 Classic Hunter with the unfluted cylinder just like yours, except mine has the 6 inch barrel and is a six shot. I still have that gun and it is my very favorite to shoot out of all my S&Ws.
You can shell out some big bucks for holsters, but check this out before you buy: