it depends on what you want. anything modern has her mostly as a lesbian standin, the older stuff focuses on the environmental aspects with the DCAU having versions of most of the major stuff with her. there are some spinoffs that have her as more normal of a criminal. Batman: Poison Ivy (1997) is a comic run made around when Batan and Robin came out, they made it to capitalize on the film and it's very good. She's good but she doesn't have the amount of comics some of Batman's antagonists have, mainly since Harley overtook her in popularity since her debut.