One great fanfiction is 'Natsu and Lisanna's Adventure'. It beautifully portrays their relationship development. It starts with a simple quest they embark on together, and as they face challenges, their bond deepens. The author does a wonderful job of showing Natsu's protective side towards Lisanna and Lisanna's admiration for Natsu.
In some fanfictions, Natsu might save Lisanna from a powerful dark wizard. He could use his Fire Dragon Slayer magic to overpower the enemy and rescue her.
Well, in many of these fanfictions, the theme of magical discovery together is quite popular. They both are mages in Fairy Tail, so authors like to write about them finding new spells or magical artifacts while also strengthening their bond. And then there's the theme of protecting each other. Natsu is a very protective character, and in fanfictions with Lisanna, this trait is often emphasized as he defends her from various threats. Lastly, the theme of family acceptance can be seen. Since the Fairy Tail guild is like a family, fanfictions might explore how the other guild members react to their relationship and how Natsu and Lisanna deal with it.
Writers often develop Natsu by showing his growth in understanding his feelings for Lisanna. In the original series, he's more focused on adventures and friends in a general sense. But in fanfictions, he might start to realize his deeper romantic feelings for Lisanna. For Lisanna, her development could be in becoming more assertive in her relationship with Natsu. She might not be as passive as she sometimes seems in the original story.
Another aspect could be their relationship growth within the marriage. They might have deep conversations about their past traumas and how they've overcome them. It could also show how their love has changed and become even stronger over time, with little romantic moments like stargazing together on the rooftop of their home.
There are several great authors. One of them is [Author Name1]. Their stories are known for their detailed descriptions of Natsu and Lisanna's relationship. They really capture the essence of the characters. Another good author is [Author Name2]. Their fanfictions often have unique plot twists that keep readers hooked.
One popular storyline is where Natsu and Lisanna go on an adventure together to find a long - lost magical artifact. This adventure tests their relationship and their individual strengths. Another is a story where they have to team up to save the Fairy Tail guild from a powerful enemy. It often involves them using their unique magic skills in creative ways.
Another idea in fanfiction could be a 'what if' scenario. What if Lisanna never 'died'? In this case, their love could have blossomed earlier. They might have been a couple throughout the main series, and fanfictions could explore how that would have changed the dynamics between Natsu and the other characters like Lucy.
You can try searching on fanfiction websites like FanFiction.net or Archive of Our Own. Just type in 'Fairy Tail Natsu and Lisanna married' in their search bars and browse through the results.