my columbian rooster, was hoping for some advise on what to breed him to?

breed him to dark partridge, a few sizzle girls, and even a splash hen last year. got some very pale colored gray and partridge hens from the dark partridge, and some black sizzles with both silver and gold lacing around the neck. and blue with white (not silver or gray) lacing around his neck.
but my favorite is a pure white hen with a valted scull, black tip to her tail pom, wing tips, and feet, but no neck coloring, darn it!! so close.