Don't be hesitant to shoot good +P or +P+ handloads from your .38 revolvers, if they are +P rated. The 19, no worries. The October 2016 issue of Handloader Magazine had a very comprehensive article about .38 +P and 38-44 loads. They used a Smith 1.85" and 6" barreled revolvers, and one conclusion was that it required 800 fps to insure expansion of commonly-available hollow points. Some commercial ammo expanded, others couldn't. So load for the snubby, knowing you will get better velocity/expansion from a longer barrel. Pick whatever bullet shoots best in each individual gun. The best loads for one gun will probably work well in the others.
Otoh, some prefer standard, target Wadcutter bullets loaded to about 700-800 fps. In my experience, hollow-base wadcuttters, loaded with hollow base foremost tend to keyhole at 25 yards.
When I was competing in IPSC, I loaded RCBS 150 gr. cast and commercial cast 158 gr. bullets over 5.5 gr Unique, which chrono'ed at 860 fps from my 4 in. barrel. 357 brass, standard primer.
Nowadays, I figure that a hot .38/mild Magnum load will be sufficient, so I have gone to 6 gr Unique, 5.7 gr Universal, and ~11 gr. 2400.
I carry 38 Spl. Speer 135 gr. +P ammo, with Remington Golden Saber 125 gr., and the "old" Remington LSWCHP 158gr. +P as back-up. I load the jacketed components for ~900 fps. For plinking, I have several hundred cast 158 Hornady swaged SWC reg and HP, and RCBS 150 gr SWC.
I know many will disagree, but I think the cast/swaged SWC have reached their useful peak at about 1,000fps. After that, it is mostly blast and recoil. Swaged SWCs and wadcutters shouldn't be shot above what good loading manuals suggest, unless you enjoy scrubbing lead out of your barrel.
To be sure, it has its detractors, but modern 38 special +P ammunition is a perfectly capable and effective round.
I don't know if anyone else has noticed, but 357 Magnum ammunition seems to be somewhat harder to find of late, and 38 Special, especially +P, more prevalent. Maybe I'm fantasizing, but I think a lot of shooters have discovered they like less recoil and muzzle blast, and they can shoot the 38s better than the 1400 fps "Blue Whistlers" from the 357 Magnum.