Moral Gutpunch
I'm writing a story where two angels show up in a magical world parallel to ours (long story). They try to wipe out of of two magical races and control the survivors. However, God didn't like them doing this and punished them and declared any other angels doing that again is wrong.
A thing to keep in mind: these aren't technically fallen angels. Fallen angels don't exist, as I'm using the Old Testament almost exclusively. These are more like AI whose programming had a flaw in it and God had to release a patch later. As such, I can't really take any angel names from the Book of Enoch, sorry.
You could just use greek/roman gods since a few arc angels are pretty much carbon copies of them.
That or you could look to Dante's Divine Comedy, I believe a few angles get name dropped once he reaches Paradiso.