A common theme is adventure. They often go on various adventures together, facing challenges and relying on each other. Another theme could be friendship evolving into something more. They start as friends or allies and then develop deeper feelings.
Well, 'The Layla - Tony Alliance' is also a good one. It portrays Layla and Tony as partners in a special mission. Their different skills and personalities complement each other throughout the story, and the author does a great job of building the story around their relationship.
Love and romance are also prevalent. Writers often explore the relationship between Natsu and Layla, how they fall in love, overcome obstacles in their relationship, and grow closer to each other. It could be a slow - burn romance or a more immediate attraction - based one.
One common theme is the exploration of a forbidden love, as there could be various reasons in the story's universe that make their relationship not straightforward. Another theme is the discovery of shared secrets or powers that bind them together.
Yes, there are quite a few. You can start by looking on popular fanfiction websites like FanFiction.net or Archive of Our Own. Just search for 'natsu x layla heartfilia' and you'll find a variety of stories. Some might be more to your taste in terms of writing style and plot development than others.
The appeal often lies in the mystery. Layla is a somewhat enigmatic figure, and pairing her with Natsu, who is full of energy and determination, creates an interesting dynamic. Their relationship in fanfiction can explore different aspects of the Fairy Tail universe, like the history of magic.
One good example could be 'A Chance Encounter' where Natsu accidentally stumbles upon an old relic related to Layla. In this fanfiction, the author explores how Natsu's fiery personality might interact with the mystery surrounding Layla. Another is 'Layla's Legacy' which delves into how Natsu discovers and is influenced by Layla's past deeds and her connection to the magical world.
You can try fanfiction websites like Archive of Our Own (AO3). It has a vast collection of fanfictions, and you can simply search for 'Natsu x Layla' in the search bar. There are likely to be many different stories there with various themes and writing styles.