I'd really like a 632 for my wife, as it would be a good companion for her Model 63.
Myself, I'm thinking of an M&P 640 without the lock.
However, J-frames are a real compromise for me because of their small size. They are much slower for me to get into action than a K-frame. Had an old Model 36 years ago. I had to mill a scallop into the right side of the front of the trigger guard just to make it easier to get my finger into it quickly. By the time it was fitted with grips large enough to fit my hand, I threw in the towel and got a K-frame Model 12.
I only have one J-frame and it's a 34-1 in .22 LR. Not a gun for self-defense, but sure is fun to have for just plinking or occasionally shooting small game.