I've used 4. I forgot the first. 2nd was Meguiar's High Gloss Tire Spray. 3rd was Black Magic Brush Gel and now I'm using Meguiar's NXT Insane Tire Spray. Out of these I like the last one cause there's no dripping or mess.
Stoners - More shine less time or whatever it's called.
I've tried Shining Monkey & didn't like it at all - the tires stayed black for a while, but I made the mistake of brushing up against one of 'em and got black crap all over...
I've also tried something that smelled like grape, but I prefer the spray on
I don't really like foam and I don't really like liquid. Liquid makes the tires look VERY shiny but drips and gets messy. If you don't let it dry then it goes all over the side of the car. I switched back to spray (Meguiars NXT Insane Tire Spray, green cap).