Soldato
Got a vamo V6 buddy 20w
Might want ask someone who knows better than me what kind of Ohm rating on a dual coil you can get away with on that for best results in a dripper.
I get fairly poor results at 20W with an 0.3 build fwiw. 30W is my personal sweet spot so far.
I guess you'd be good with 0.7+ at a very rough and uneducated guess.
Then again, if you're going for a single, then cool.