Or skip to the 2016 re-launch DC Universe: Rebirth event and then any Rebirth series #1.
Well, you didn't really give us much to work with. What are your favorite movies, TV shows, comics (if you've already read some), books, games, etc.? In lieu of that answer, here are some general recommendations:
> since I last read consistently in like 2012
Did you not develop a means/method to researching comics you like back then? That's something that should stick with you and probably still applies. All of the old stuff that was good back in 2012 is still good (nothing posted here for that will be much different than just Googling "top comics of all time"). Here's some good new stuff you might've missed since 2012, though:
/r/comicbooks Rebirth ranking survey results (October 2017).
/r/DCcomics Rebirth ranking survey results (May 2017).
/r/DCcomics New 52 ranking survey results (February 2014).
/r/DCcomics New 52 moderators’ top picks (May 2017).
DC 2016 Rebirth re-launch: DC Universe: Rebirth event and then any Rebirth series #1.
IDW's 2011 TMNT reboot with Eastman, Waltz, et al. and IDW's 2012 Phase 2 Transformers (especially More Than Meets the Eye) have both been excellent. They can be mature, dark, funny, action-packed, etc. and surprisingly good, considering the IPs.