I would suggest Federal 110gr Hydra-Shok JHP Part #PD38HS3H or Winchester 110gr Silvertip Hollow Point ammo Part #X38S9HP.
If you like a heavier bullet like I do, both Remington and Winchester produce a standard pressure 158gr LSWC round, Part #R38S6, and Part #X38WCPSV respectively. Both are reported at 755 fps from a 4" barrel but for that heavy a bullet that's not a bad velocity especially for an all lead bullet that will probably expand easier than a jacketed one. Even if it doesn't expand it will penetrate fairly well...
BTW, not so called +P .38 Special ammo of today (except for the very hot stuff like Buffalo Bore and CarBon) won't damage your post-war revolver because it's not any hotter than the "normal" .38 Special ammo of 30 to 40 years ago. I won't tell you to shoot it but just be aware ammo loaded to 18,000 PSI like most of the so called +P ammo isn't all that hot.
.38 Special old SAAMI standard = 18,500 PSI
.38 Special new SAAMI standard = 17,000 PSI
.38 Special +P oldest standard = 21,500 PSI
.38 Special +P old standard = 20,000 PSI
.38 Special +P new standard = 18,500 PSI
As you can see, as revolvers and steel got better for some reason the pressure standards were dropped lower. It would seem there would be no rational reason for this but hey, who knows??
They also dropped the .357 Magnum standards from 40,000 PSI to 35,000 PSI in response to those 12oz Magnum revolvers released by S&W. I don't think that right at all to neuter a fine caliber just because some people want to buy a way too light Magnum revolver. Why punish an entire shooting community for some shooters? I guess instead of S&W telling the owners which ammo is safe to shoot in their revolvers SAAMI felt it necessary to treat all shooters as children. Normally I wouldn't mind but they also neutered all the reloading data for the .357 Magnum too. (sorry for the rant)