I am looking for a pistol, not for carry or defense primarily. Just to get back into shooting and relearning everything I'm not up to speed on.
Ok. I'd go with a .38 revolver. I'd start off by shooting wad cutter ammo. The pistol won't kick as much shooting wad cutters. Once you feel comfortable shooting the wad cutters and get used to the pistol, graduate to regular .38 special ammo.
Or you could get a .357 magnum. You can shoot .38 wad cutter ammo and .38 special ammo in it. Then when you're very confident, you can slip in the .357 mag shells.
Personally, I prefer the .45 ACP but you can't go wrong on the above. Stick with a revolver to start out with. It will be more simple to gain confidence with a wheel gun, more simple for beginners, than an automatic.
Since you're looking for a pistol, not for defense, but just for shooting fun, I'd say the Ruger .22 single action revolver with the extra .22 magnum cylinder. A versatile combo.