Thanks for reaching out Flo! My best guess would be that you have a 38 S&W Special snubnosed revolver, but I can't say for absolute certain with only the information you provided. (You may be able to confirm if your handgun's barrel says "38 S&W Spl" on it.) To be sure, if your revolver is chambered for 38 S&W Special (aka 38 Special or 38 Spl), then it's compatible with ALL 38 Special ammunition. I assume you're only interested in using your revolver for personal protection. I'm uncertain whether your handgun is chambered for overpressure (aka +P) ammunition, so I'll only recommend a good standard pressure load:
luckygunner.com/38-special-110-grain-sjhp-remington-htp-20-rounds
That's got a nice, lightweight bullet that shouldn't punish you with too much recoil. It also has an SJHP bullet, which is designed to expand while it penetrates soft tissue. That's the kind of bullet you want when your only goal is to neutralize an immediate threat to your personal safety as soon as possible. Remington's a great manufacturer, and I'd be confident using this ammo for self-defense myself. Please let me know if you've got any other questions!