Green Queen is a Faverolle and a blue egg layers. Agate the reason for the 5 toes and feathered legs. If they were Silkie cross some would come out with the silkie feathers.from the description of the "Green queen" it's just an easter egger with a bit of silkie since it can have feathered legs and 5 toes. just like any other easter egger is might lay the colour they say it will but also might not.
Hatchery Olive eggers (from meyer atleast) are meant to be first generation crosses of a blue layer and a dark brown layer so theoretically if they use pure parental stock they should lay olive so these would be better to get if you want green eggs. Appearance wise it depends on if they uses Ameraucana or Cream Legbar as the blue laying parent
Sapphire gems are a hybrid that lays brown eggs