Meguiars endurance tire gel. Slings a bit, and is not water based, but if shiny is what you want, then go for it. I just recently switched to Optibond tire gel. No sling, water based, but not as shiny.
I don't like the used car lot look personally, but I've done a few coats of Opti-Bond to make really shiny tires. Multiple coats of the Turtle Wax tire coating will also produce a shiny look.
Meguiars DUB Tire Shine, 2 coats applied with an Adam's hex tire applicator, holy crap super wet look. Smells freaking amazing too. Wally World and I think Pep Boys sell it. Uber cheap and a can lasts forever.
Optimum Bond for me... 2 Coats and lasts a while. Griot's Long Lasting Tire shine is also extremely shiny. I used that before I tried the Optimum. Car Prol PERL is next on my list to try and for interiors as I'm nearly out Adams Super VRT.