Semi Auto 9 is a good choice. There are a lot of fantastic options these days. Like Fuzz said you can't go wrong with a Glock 17 or 19 depending on the size you want, the M&P and XDm are serious competitors and good alternatives. My vote is for the dark horse Walther PPQ. Not a lot of marketing around it in the states which I assume is because its imported from S&W and its direct competition for the M&P. Do some research and look for reviews, there is A LOT on YouTube. I shot two mags thru a buddies PPQ and it has the best trigger on a poly gun I've ever used, stock or jobbed. Minuscule take up, breaks crisp, and has a very short audible reset. It's a tough descision, do you know if you'd prefer a striker or hammer fired? All the ones I mentioned are indeed striker. Good choice for a first handgun, it's a breeze to take down and clean.