I can give you the old-fashioned hotrodder approach; others can chime in with more modern methods.
We used to start by lowering the vehicle, to get the center of gravity closer to the pavement. Then we'd go for the smallest circumference tire/wheel combination we could find. 50- or 60-series gave a satisfactory ride without too much harshness (which the wife will tend to notice). Getting the tire/wheel circumference down generally lowers the final drive ratio, which gives you a feeling of more power; and it also helps braking. The next step is adding shocks with a high snubbing action, to keep the chassis planted. The above will make the vehicle feel more like it's on rails when going through corners. Beyond this, it's all complicated fiddling with suspension geometry.