>>4016392I mostly read Batman so I can't help much with other characters, but some must-read Batman series to understand the bare minimum of lore:
Year One by Frank Miller
The Long Halloween / Dark Victory
Death in the Family
Hush
The Court of Owls
I don't think it's canon anymore, but the 90's run of Cataclysm / No Man's Land is pretty good (warning: NML is looooong)
All-Star Superman from 2005 is also often recommended. And I've heard good things about Nightwing Rebirth.
