You are going to need a mother but like all great clone onlys they came from a seed.
With selection you can find a big quick Critical Mass. Better can be found but not with that speed and size and some are really good even seen one test 19% THC but I never tested my weed the east coast sucks.
But so many quick strains where to begin? Just too many names with this younger generation and most are probably the same old crosses. Blue Dream= SSH x Blueberry, Grand Daddy Purple is Big Bud/Critical Mass x Purple Urkle.
I'm sure they all come from the same old school genetics just jumbled around.
Pollen chucking great old school genetics is the way to go IMHO.