I'd go with stainless steel:

A 4" 686 or 681. I like older and pre-lock but any will probably do. With the 686+ you can even get a 7 shot.

An 8-shot 627 would be a suitable alternative. Probably go with a 5" barrel. Most of these have the internal lock, the pre-lock ones being much more desirable/expensive.

A distant third option would be a 3" model 60-10 with adjustable sites if you are into J frames.

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My sgntr is mor thn 30 chrctrs