For Superman: Year One fans…
-All-Star Superman (2006). One of the most acclaimed tales in all of comicdom since it was published and for good reason. To say anymore is to let the flavor out of the succulent meal this mini is, so eat up, for it is DELICIOUS.
-Superman (1987) #'s 204-216, the For Tomorrow arc. Brian Azzarello (no stranger to Black Label due to Batman: Damned and the retroactively added Joker OGN) pens a tale of Superman questioning his faith in himself as he tries to solve a mystery while also dealing with Wonder Woman and the JLA, a rogue government operative and villains General Zod and Equus. Jim Lee’s pencils on this tale are exquisite and amongst the best work of his career.
For Batman: Damned fans…
-Lex Luthor: Man of Steel (2005): A five issue mini-series, also by Brain Azzarello, this time with art by his Joker and Batman: Damned collaborator, Lee Bermejo. This title showcases Superman from Lex’s POV and why he so strongly feels Krypton’s last son is a threat to humanity.
-Batman/Deathblow: After The Fire (2002): Anyone who liked Batman: Damned will likely enjoy this as it was, like Damned, written and illustrated by Azzarello and Bermejo and is a three issue mini-series as well.
For Harley Quinn and the Birds of Prey fans…
-Harley Quinn (2013): Before they worked on Harley’s latest Black Label title (Harley Quinn and the Birds of Prey, for those unaware), Jimmy Palmiotti and Amanda Conner worked their magic on this New 52 ongoing.
Finally, and best of all, there’s DC: The New Frontier (2004). Written and illustrated by comic book master Darwyn Cooke, this 6 issue mini-series showcases several DC heroes against the backdrop of the Cold War, and truly is a masterwork in every way, especially when seen as Cooke’s love letter to the Silver Age.
All-Star Superman, DC: The New Frontier and Lex Luthor: Man of Steel have been retroactively added to the Black Label line via recent collected edition/trade releases. Not only are they thematically similar to Black Label, but technically speaking, they ARE Black Label too, and are the few Black Label books on the service when looked at from that perspective.