Smith and Wesson M&P 2.0 compact in 9mm. Holds 15 rounds and can also use the 17 round mags. Feels amazing in the hand. Same size as the Glock 19 and just as reliable. Can be found for well under $500 if you do your due diligence. Comes in the 3.6" and 4.0" barrel length. Accessories are readily available.
If you plan on concealing inner waistband it could be a little rough on the skin, due to the new texture of the grip unless you wear an under shirt.
If the S&W M&P pistols were as reliable as Glocks they should be getting some of the Federal LEA Contracts since they are Made in America.