My all time fave: black by Nailite.
after my hunt for the perfect black, I found it with my original disttributor (not having realized at the time that they did indeed have black LOL).
It's COMPLETELY opaque in one coat, no streaks, TOTALLY black and not bluish or grey at all! EXACTLY like black patent leather shoes, nice and glossy. Dries like a dream, and not goopy or thick, nor runny. PERFECT.
Even better than voodoo (sorry creative lovers:o but I tried)
They also have another one called "Mochacino" which I can't keep on the shelf. Clients LOVE it.