It seems that none of the puppies are fluffies! Even the little tri girl that I thought for sure was fluffy, turns out just long puppy coats.
I posted a new picture of Scooter one of the fluffy "suspects" and her coat is beginning to look more like the usual corgi puppy coat. So I ended up with 3 puppies with shorter coats and 3 puppies with longer coats and no fluffs. Always something interesting with corgi puppies.