It's hard to recommend a specific product with out knowing more about the condition of your paint (i.e. what defects are present and how much of them you want to remove), and whether you're going to be using a PC or not.
By hand, some (including myself) have had good results with the 1Z line of polishes. I've also had moderate success with Poorboy's SSR polishes by hand.
By PC, some favorite lines are 1Z, Poorboys, 3M, and Meg's.
Most to least abrasive:
Poorboys (SSR3, SSR2.5, SSR2, SSR1, Pro Polish (non-abrasive))
1Z (1ZUP, 1ZPP, 1ZMP)
Other's can fill you in on 3M and Meg's.