You may find John Taffin's article in the December '22 issue of GUNS magazine of interest.
Searching this site will keep you busy for days on the subject too!
Good luck and keep your powder dry!
Mr. Taffin's articles are always of interest. I have two in my library, one from the May-June issue of American Handgunner, titled ".38 Special loads for the trail", and another I got from the Internet titled "Taffin Tests: the .38 Special"
Handloader magazine issue #309 Oct-Nov 2016 has an in-depth article, comparing current factory load performance, with extensive +P .38 data, as well as some .38-44 load suggestions. Probably enough information to keep a reloader busy for a good while.
Mr. Taffin and I share a favorite projectile...the RCBS 150 gr KT bullet. I no longer cast bullets, and sadly, no commercial caster offers the bullet. I have a small supply from my last casting batch, so wil use them sparingly.
FWIW: I loaded some of the "Skeeter/Elmer" loads...13.5 gr. 2400, 357 brass, 158 gr. cast SWC. Standard primers, S & W 586 4"...Hoo, BOY! No, thank you very much! 11-12 gr. is much more to my liking.YMMV