There are nine choirs or hierarchies of Angels – Seraphim, Cherubim, Thrones, Dominions or Dominations, Virtues, Powers, Archangels, Principalities and Angels.
Bless the Lord, all ye His Angels! Thou who art mighty in strength and do His Will, intercede for me at the throne of God. By thine unceasing watchfulness, protect me in every danger of soul and body. Obtain for me the grace of final perseverance, so that after this life, I may be admitted to thy glorious company and sing with thee the praises of God for all eternity.
All ye holy Angels and Archangels, Thrones and Dominations, Principalities and Powers and Virtues of Heaven, Cherubim and Seraphim, and especially thou, my dear Guardian Angel, intercede for me and obtain for me the special favour I now ask.
(Mention your Intention).
Glory Be 3 times.