Optimum Instant Detailer ! This stuff has more slickness and durability than most boutique wax's. no joke. can be used on a wet or dry car and is amazing in all categories.
I get 4 weeks of slickness and water beading from it. (car is garaged though , lol

, but still, I dont see similar slickness from any other product)
notable mentions are -
-Wolfgang Instant detail spritz - (too expensive to recommend. behaves totally different that Optimum, but is VERY easy to use and does NOT streak even if you tried) (leaves sharp reflections like a sealant, which is why i love it on light colored cars)
-Pinnacle crystal mist - (again, too expensive)(behave similar to Optimum but is lower in every category)
-Griots Garage Speed Shine - (great price, and works well. but more of a QD without wax protection and durability)
- Prima Slick - good stuff, not enough experience to recommend though.
Also, to note, I buy the Optimum Instant Detailer by the 17oz bottle. This stuff goes a LONG way. 2 squirts per panel. The 9.99$ bottle should last you atleast 2 months for 1 car (8 wipedowns after washing).