One great 'Zuko and Katara Fanfiction' is 'The Phoenix and the Wave'. It beautifully explores their relationship development. The story is set in a post - war scenario where they have to work together on a diplomatic mission. Their initial distrust slowly turns into mutual respect and something more.
Their relationship would likely become more intimate and complex. They would have to rely on each other more, sharing a bond that goes beyond their previous friendship or alliance. Zuko would probably become more protective of Katara, and Katara would trust Zuko with her vulnerability during pregnancy.
Yes, there are quite a few. You can check out platforms like Archive of Our Own. Some fanfictions focus on their married life, how they adjust to living together, and the challenges they face in a post - war world.
In a 'Zuko kidnaps Katara' fanfiction, Zuko could be under the influence of some dark force or an evil advisor. He kidnaps Katara thinking she is the key to unlocking a powerful waterbending technique that he wants to use for his own gain. But Katara is a strong - willed character. She doesn't give in easily and instead tries to turn the situation around by appealing to Zuko's better nature, which he has buried deep inside him.
Another theme is the power of forgiveness. Katara has to forgive Zuko for things he has done in the past. Fanfictions often explore how this forgiveness is a key step in their relationship. For example, in many stories, Katara's ability to see the new Zuko and forgive the old one is what allows their love to bloom.
Another reason is the vast potential for storytelling. There are so many untold stories about them. Fanfiction writers can take their relationship in various directions, whether it's a romantic relationship, a deep friendship, or a partnership in facing new challenges that the original series didn't fully explore.
One great Katara and Zuko fanfic is 'The Balance Within'. It beautifully explores their relationship development post - war. It shows how they learn to understand each other's perspectives and grow closer as friends and maybe more. Another is 'A New Alliance' which has an interesting plot where they team up for a mission that forces them to rely on each other and in the process, their feelings start to shift.
Well, 'Zuko and Katara's Everlasting Bond' is another one. It starts with their accidental meeting after the war and then slowly develops their relationship until they get married. It's full of cute moments and the author does a great job of portraying their characters.
Fanfiction.net also has some. However, the tagging system might not be as refined as AO3. But if you search specifically for Zuko and Katara's relationship and filter for married stories, you might find some interesting reads.