That is really a broad and subjective question, and since everyone has different driving styles, everyone will have a different answer. Here are a few good handling cars:
VW GTI (the original)
Skyline GT-R V-spec II Nür (R34)
Ford RS200 Rally
Just about any Lotus
Most Skyline GT-Rs are pretty good, as well as most Lancer EVOs and Subaru STIs. The NSX if you tune out the lift-throttle oversteer is surprisingly good.