A new shooter is poorly served by a tiny airweight snubby revolver, which is uncomfortable (if not outright painful) to shoot, and difficult to hit with. Look instead at a medium-framed revolver with a 3" or 4" barrel in .38 or .357 Magnum. These are typified by guns like the S&W Models 10, 13, 19, 65, etc., the heavier Ruger GP100, and some discontinued-but-good Colt revolvers like the Police Positive Special. Load with .38 Special hollowpoints for defense.
It's a simple, safe and effective defense gun for a new gun owner.