Action comics #1-50 (Golden Age)
Adventures of the outsiders #33-38
Animal Man(2011) #0,#14-29 (New 52)
Aquaman #5-14, #0 (New 52)
Batgirl(2011) #1-52 (New 52)
Batman and Robin (2009) #2-26
Batman 66 (2016) #2-6
Batman and robin(2011) #1-12 (new 52)
Batwoman(2011) #7-12 (new 52)
Blue Beetle #7-32 (2006)
Deathstroke #7-20(2014-)
Detective Comics #27-100 (Golden AGe)
Doom Patrol(1964) 14-36
Doom Patrol(1987) 24-63
Doom Patrol (2016)1-5 (rebirth)
Grayson #14-20 (New 52)
Green Arrow (2011) #17-34 (New 52)
Robin Mini-Series(1990) #1-5
Exciting notes, every series has been about fuller runs. Giving you the first 50 Action comics. Also NEW 52 runs. This stuff is in current comics canon.
Must Reads:
Aquaman #0-14 This run defined who Aquaman is. This added Volume 2 which eventually morphs into Aquaman and the Outsiders (Also Available)
Grayson defined Kings early work at DC. This is a fantastic series!
Green Arrow (2011) MattMcdonald the head of DCU Book Club loves this series so so so much!
Morrison’s Doom Patrol Enough said!
Also Young Animal’s Doom Patrol Enough still said!
Wait List
Animal Man is fantastic but ties in with Swamp Thing heavily. With swamp thing still pending I would wait.
Consider List
Action Comics and Detective Comics Old Stuff. If you want to dive into the original works, you now have plenty to read.