Archangels are an entire choir of the heavenly host. They are innumerable and only three are named Scripturally: Sts. Gabriel, Michael, and Raphael. The Book of Enoch provides the names of Jeremiel and Uriel, while other Apocryphal books name others. Find out more here.
Catholic Answers recently had a radio show discussing the angels for 2 October. Unless I’m mistaken Mark Miravalle discusses this on there.