Gail Simone's run is basically required reading for anyone asking about Diana's female allies, because it feels like she intentionally built a team-up arc around that idea. The 'Circle' storyline digs into her Amazonian sisters with a depth that earlier comics sometimes glossed over, treating Themyscira not just as a backdrop but as a living society with internal politics and conflicting loyalties. But where Simone really shines is in the modern-day partnerships, like her dynamic with Black Canary and Huntress in that oddball 'Birds of Prey' crossover. It wasn't just about fighting together; it was about contrasting their very different approaches to justice and sisterhood, with Diana providing the moral center while still learning from their street-level pragmatism.
If you want a single, self-contained story though, 'Wonder Woman: The Hiketeia' by Greg Rucka is a masterclass. It’s a Greek tragedy in comic form, centered entirely on a sacred bond between Diana and a young woman she vows to protect, even against Batman. The 'strong female ally' here is the core conflict—Diana's oath versus her friendship, her duty as a hero versus her duty as a protector. The art is moody and theatrical, and it makes the relationship feel ancient and unbreakable, which is a different kind of strength than you see in battle scenes. For a more recent take, the 'Justice League Dark' stuff, especially during James Tynion IV's run, has incredible moments with Zatanna and Madame Xanadu, where Diana's mythological knowledge blends with their magic in ways that make her feel like a different kind of leader.
Honestly, a lot of older runs treat her allies as afterthoughts, so these focused arcs stand out. I'd start with 'The Hiketeia' for the intense one-on-one bond, then jump into Simone's run for the broader ensemble feel. The Rebirth era also had some good moments with her and Cheetah, reframing their rivalry into something more complex, but it's more inconsistent.