The larger leafed companion of the 'King Sago' (Cycas Revoluta) is Queen Sago.  This leaf lasts quite long, and competes directly with larger Phoenix Roebelinii leaves, as well as Areca or C.Cataractarum leaves (Cat Palm or Comodor).  It's rich, almost bluish green color is a great compliment especially to tropical flowers, such as Gingers, or Heliconias.  Nonetheless, it is becoming more and more popular even in standard bouquets.  The Queen Sago is one of the oldest plants on earth, dating back over 140 million years, and not known for quick growth!  IntraGreens is one of the only producers of this leaf, and has taken over a decade to increase its production area, so you can rest assured you can be exclusive in your area.