Hi. Felt recoil is subjective. However, the weight of the handgun, its grip material, its fit to your hand and the ammo has a lot to do with it. Glocks are light weight pistols. Not bad, just lighter than a steel framed pistol like a Browning Highpower.
.38's are normally revolvers. Although high priced .38 semi-auto target pistol exists. In any case, comparing a Glock to a revolver is an apples and oranges thing. A revolver has to fit your hand too though.
I have short, but wide hands. For me, S&W revolvers are just a wee bit too big. A Ruger GP100 fits perfectly. Ruger 9mm pistols, on the other hand, are also too big. While a 1911 .45 ACP and a Browning High Power(BHP) fit just fine. Both fit most people. And the felt recoil of a .45 ACP isn't bad. Even with hot ammo. I like my .45 better than my milsurp BHP.
Fit to your hand means you can easily reach the trigger with no strain in your hand.
"...looking to get a gun..." Go to your local gun shop and try a bunch of handguns on for size.
Join a shooting club too. Opens a lot of doors and most shooters will bend over backwards to help you, including letting you try their firearms.