For Superman, I'd recommend Superman For All Seasons by Jeph Loeb, as well as Superman: Up in the Sky by Tom King, and All-Star Superman by Grant Morisson, but those are just stories I personally enjoyed. I am not much as much of a Superman expert as other people on here, so they might be able to provide better recommendations.

For Wonder Woman, I would say Wonder Woman: Gods and Mortals by George Perez. It is, in my opinion, a very good introduction to the character and the mythos. But I am not as much of a Wonder Woman expert as Tupka, so he might have a better recommendation.

I haven't read much Aquaman, and what I have read so far hasn't impressed me, but I did like The Trench by Geoff Johns.

I don't read JL books very often, so I can't help you there.

For Suicide Squad, I'd recommend the John Ostrander run. It's the first appearance of the group as we know it today, and it's quite good.

For GL, I'd say Green Lantern: Rebirth by Geoff Johns is a pretty good place to start. There's some other stories that lead up to it, but I think they are recapped pretty well in the beginning. But I'm not as much of a GL expert as some other people on here, so they might give a better recommendation for a starting point.

Thanks

Green Lantern? Far Sector. 😎

I'm serious. It may not be about big GLs like Hal Jordan or John Stewart but it's good. It's for mature readers tho.

What decade should I start reading DC comics?

^1996, 2000, 2006, 2011

For Superman, Read Up, Up, and Away. It’s written by Geoff Johns and Richard Donner(who directed the 1978 Superman film if you didn’t know) it’s a great jumping on point leads to some great stuff. Also I just read Superman/Batman: World’s Finest (2004) recently and it did not disappoint.

Also I agree with Doctor Manhattan on the Aquaman thing. The Trench is the right place to start. Either that or Aquaman: the Waterbringer. But The Trench is a better story and has better art.

Also for Green Lantern read Green Lantern: Secret Origin. It’s the best origin. Same goes for Superman: Secret Origin, in my opinion at least(that’s a bit of a debated topic), there’s also Birthright and Man of Steel which are both good too.

Also I’d like to mention the Earth One books they’re easy to pick up, in graphic novel form(so they were never single issues) they are all in their own continuity and really haven’t even crossed over with other Earth One books yet. They are a much more realistic takes on the Trinity, Green Lantern, and the Teen Titans. So you have Superman, Wonder Woman, and Green Lantern covered in those books.

For Superman whatever happens to the man of tomorrow is pretty good