Well, I looked it up. Who knew there were so many regulatory agencies in Heaven; it is a bureaucrats wet dream. Makes you wonder why so many conservative Christians are so gung-ho on getting in there.
Seraphim
Cherubim
Ophanim (Thrones)
Hashmallim (Dominions or Lordships)
Virtues or Strongholds
Powers or Authorities
Principalities or Rulers
Archangels
Angels