When I think comfort in a DA .357 revolver, if I am one doing the shooting, I think immediately of the GP100 with the original, pre-Hogue factory grip. The smaller SP101 is also notably comfortable, but not for nearly as many shots as a GP100.
All of my SA sixguns are chambered in .45 Colt, so for me to recommend an SA in .357 would not be based on actual experience, though I would think .357 recoil from something like a Ruger Blackhawk would be quite mild, especially once one learned to ride with the recoil, rather than fight it.
I do have hands-on experience shooting .44, .41, and .357 Magnums, plus .45 ACP, from S&W DA sixguns. One thing for sure, I very much need aftermarket or customs grips or stocks on S&W revolvers that have much recoil. This is one reason I seem to have accumulated more Rugers that S&W, as I need to budget extra to make the weapon fit me when buying an S&W.