[jwyss234]

Just found this thread so I'll give you a few of my picks.

Marvel
Amazing Spiderman: Renew Your Vows (2015)
Astonishing X-Men: Gifted
Cable and Deadpool: If Looks Could Kill
Captain America: Winter Soldier Vol. 1 and 2
Daredevil by Mark Waid Vol. 1 (2011)
Hawkeye: My Life as a Weapon
Ultimate Spiderman: Power and Responsibility, Learning Curve, Double Trouble

DC
Batgirl: Year One
Batman/TMNT Vol. 1
Batman: The Court of Owls
Dark Nights: Metal
Superman: Birthright

IDW
Teenage Mutant Ninja Turtles: The IDW Collection Vol. 1
GI Joe: The IDW Collection Vol. 1

I'm not sure if you're into TMNT or GI Joe but The IDW Collections are a good place to start for both series. GI Joe especially since there are a lot of mini-series in addition to the main title so these collections will have everything in order. I especially recommend the IDW TMNT. It's been my favorite version of the TMNT and combines elements from the Mirage comics and the 80s cartoon.