I know it’s frustrating, especially since you literally can’t get this character anywhere else, except in the pre-Crisis comics and the short-lived Birds of Prey television show.
Bruce and Selina, I can get them in out-of-continuity comics, television shows, and movies, video games, etc, if I don’t like how they’re being written in the mainstream comics. Lois and Clark, same thing. I can read them in other non-New 52 comics, I can see them in movies, television shows, and now, recently, a novel.
But Helena Wayne? We’re stuck with what DC has to offer, and it is bullshit. :(
It’s unfortunate that we just got Helena Wayne back after not having her in continuity for two decades, and DC has yet to utilise her full potential by actually giving her good narratives.
The only thing I can recommend at this time is her pre-Crisis stuff, cause that’s literally all we have to keep us preoccupied for the time being. (That’s actually what I’m doing right now!) Also, the pre-Crisis comics are far more respectful of her character than the current New 52 stuff. :/
One stand-alone story that I absolutely recommend that is a must read for all Helena Wayne fans, however, is the Justice Society Annual #1 by Geoff Johns and Jerry Ordway!