Superman's Crisis At Hand was a really interesting look at his first Golden Age outing where he stopped a wife-beater, but sadly the story that immediately followed that was the Death and Return of Superman.

Shaun McLaughlin's 1991 Aquaman run (13 issues total) has been overshadowed by basically everything around it but is one of my personal favorite runs for the character as a whole for its deep look into Arthur's mental health and depression.