Kel-tec, Kahr & Glock all make small 9mm's & all are decent quality.
Keep in mind that a very small gun is going to have an equally opposite increase in felt recoil, i.e. more bang to the hand than a "normal" sized gun.
Ideally, the best thing to do is find some buddies who'll take you to the range & let you try out several brands & models to see which works for you.
Hope this helps.