I would suggest picking up a manual or two and searching through there for loads rather than using data from unknown sources on a website. At the very least you could compare the suggestions with actual tested data to help weed out any loads that might be problematic. The Lyman Cast Bullet manual would be a first choice. A manual can also help one troubleshoot any problems that one may encounter.
As for myself with various 158 gr lead SWCs, I have used Alliant Unique, Herco, Blue Dot, and 2400; Winchester 231, WSF, and WST; Hodgdon Universal, HP-38 (same as Win 231), Titegroup, HS-6, and H4227; Accurate/Ramshot True Blue, No 5, and Solo 1000 to get +P type loads.
Powders I haven't tried yet but hope to soon would be Hodgdon CFE Pistol; Winchester AutoComp, W244, and W572; and Alliant Power Pistol.
The 38 Spl is a pretty easy cartridge to load for and like many, it would be far shorter to list poor loads than good ones.
