Are you willing to try the genre stuff?

If so, House of Mystery, House of Secrets, Jonah Hex, Strange Adventures, Bat Lash and Phantom Stranger are all great Showcases. Also Challengers of the Unknown (esp if yer a Kirby fan).

And Atom 1, Hawkman 1 and Adam Strange 1 (especially as Archives) for super-heros with a solid science fiction background.

'Reading' / 'Reading soon' stack: DC/Vertigo - ArtOps, Batgirl, Gotham Academy, Gotham by Midnight, Injustice; Marvel - Allred's Silver Surfer; Other - Abe Sapien, Descender, Fight Club 2, Goon, Mind MGMT, Southern Bastards