If you are not going to be reloading for it, the GECO available over on GunBroker runs in the 1300s according to users who have actually chronographed it...it is a good full power .38 Super FMJ load.
For carry, I like a bonded bullet like the Speer Gold Dot or the Underwood Xtreme Defender with the 90 grain Lehigh solid copper bullet.
https://www.underwoodammo.com/collections/handgun-ammo/cartridge_38-superhttps://www.buffalobore.com/index.php?l=product_list&c=68https://shop.reedsammo.com/38-Super_c38.htmhttps://www.gunbroker.com/Pistol-Ammunition/search?Keywords=.38%20super&Sort=13&PageSize=96I would not buy the Winchester Silvertip as it is only in the 1200s...the Federal JHP is even slower...not sure why they even bother...it isn't even 9mm+P...