Enoch 9

Which four archangels intercede for humanity in chapter 9, and what do they see?

Michael, Uriel, Raphael, and Gabriel look down from heaven and see the enormous bloodshed and lawlessness on the earth, and they hear the souls of the dead crying out for their cause to be brought before the Most High.

What do the archangels specifically accuse Azazel and Semjaza of before God?

They tell God that Azazel has taught humanity all unrighteousness and revealed eternal secrets that were meant to stay hidden in heaven, and that Semjaza, though given authority over his fellow Watchers, led them to defile themselves with human women, resulting in the giants and the bloodshed now filling the earth.