8 Best Friendships In DC Comics
5. Batgirl & Black Canary
Barbara Gordon may not be a detective in the same sense that her father is, but she too does have a crime-fighting partner to call friend in the form of Dinah Lance.
Also similar to her father, Babs and Dinah didn't start off as the best of friends, with Oracle's (the name Barbara was going by at the time) more calculated approach clashing with Canary's idealistic impulsiveness.
Through the many battles they have fought together, the pair have grown to have immense trust and respect for one another, with either of them having saved each other on numerous occasions. The most notable of which probably being Oracle's orchestration of Dinah's escape from the villain Savant.