Max, I agree with colt_saa. 38S is a Fun, versatile, caliber, not complicated to reload,etc. I've used bullets from .354" to 358" in various pistols. It's not rocket surgery
BTW, I ordered one of the SIG 38S barrels mentioned just to try out. Very nicely finished in and out, dropped in without loose/sloppy fit, accurate as factory barrel, and ZERO malfunctions with factory or reloaded ammo.
BTW, depending on particular chamber and die dimensions, you may be able to load the 38S with your 9MM dies....