If you can find an older Model 19, 66, 10, or 64 you would probably be happy. The Models 19 and 66 have adjustable sights, the Models 10 and 60 have fixed sights. The Models 19 and 10 come in blued or nickel, and the Models 66 and 64 are stainless. These guns come in variable lengths. These are all K-frame revolvers. In the J-frame series (the next size smaller) you might want to consider the Models 36 (blued and nickel) and 60 (stainless). Both of these come with fixed sights. The 600 series in a .38/.357, such as the Model 686, are L-frame models, making them a bit larger than the K-frames. The L-frame models are also more modern pistols. With that said, a person can still buy newer versions of some of the aforementioned models. If you read some of the posts on this forum, there seems to be a considerable number of folks who believe that the older models are more desirable than the newer ones. I have both, a Model 66 (no dash) and a brand new Model 617-6. I love them both.
I hope this helps a bit.