Based on clothing requirements, I carry a 9MM Shield or a S&W 642 with one reload for each. Both are easy to conceal but the 642 is usually worn when concealment is the primary concern. I have carried J-frames for decades and have a special bias toward wheel guns. Carried 1911s as primary for years with a J-frame backup. The Shield won me first time I picked one up. Ergonomics are excellent for me. Good luck.