Kind of inspired by Agent Z's thread but Wonder Woman's most notable connections with characters outside of her own world are Batman and Superman due to the Trinity but what characters would you like to see Diana interact with on a one-and-one team up situation rather just say being on the same team like Justice League or the Justice League Dark? Not talking romance really either, just where you think there'd be some interesting story/character potential
To give an answer myself. I think any of the Green Lanterns could be be interesting (I'd probably pick either Hal or Jessica) since they both occupy fairly separate portions of the DC universe that could be neat to see be mixed up, maybe even be a chance to bring back Diana's old Golden Age/Pre-Crisis space-based enemies.