Here are all the ones I know about!!
The sun and the moon (ao3) - “You want to leave him here,” she murmured. They both knew it to be true, but to hear it aloud somewhat shocked the Southern Chieftess. But she couldn’t deny it.
“I— it isn’t that I don’t want him. I love him with my whole heart, Laya, I don’t know what I would do if he had died. But… I…”
“You want him to stay close to Tui.”
“I feel like if he leaves her, he’ll die.” She looked down to the boy, patting his back. “Does that make me a terrible mother? Am I—”
“I feel it’s the best… I spoke with Tui last night, with Yue. She wants him here. He is as much her son as yours. I feel… I feel as though he needs to be here.”
Moon Touched (ao3) - Au created by @peachieflame on insta. Au where sokka is prince of the northern water tribe, where zuko is sent to study their culture (gather intel). Sokka slowly falls for the awkward prince.
Dilema (ao3) - Prince Sokka, next in line for the Chief of the Northern Water Tribe, wasn’t sure what to expect when he met Prince Zuko.
Royal zukka RWRB au (ao3) - Sokka accidentally falls into an ice sculpture with one (1) prince of the fire nation, Zuko. This leads to a forced diplomatic friendship to a genuine one and then they becomes lovers???
Royal Arrangement (ao3) - Zuko was not excited. Zuko knew as the Crowned Prince of the Fire Nation he’d have to be married one day, and he knew it would most likely be an arranged marriage.
What Zuko never imagined was that he’d be marrying the prince of the Northern Water Tribe.
