A fanfiction might focus on a love story between Leo and Aries. They could meet in the celestial spirit world during a time of upheaval. Leo, being the brave lion, protects Aries from the chaos. As they spend more time together, they realize their feelings for each other and have to navigate the challenges of being celestial spirits in love, like dealing with the rules of the spirit world and their contracts with their mages.
One great Aries and Leo fanfiction is 'The Celestial Bond'. It beautifully explores their relationship within the Fairy Tail universe. The author does an amazing job of bringing out their personalities. Aries' shyness and Leo's bravado play off each other really well in this story.
One common theme is Leo's relationship with the other guild members. It often explores his loyalty and how he interacts with them in different situations.
Maybe a fanfiction where Leo and Aries are the only two celestial spirits left after a great war in the spirit world. They have to find a way to repopulate the spirit world. They travel to different realms in search of a solution, facing many dangers along the way. Along their journey, they learn more about each other's strengths and weaknesses and develop a deep bond that is more than just friendship.
One common theme is redemption. Given Leo's complex backstory in 'Fairy Tail', many fanfictions explore his journey towards redemption. For example, he might be trying to make up for past mistakes.
In a fanfic, their relationship could develop romantically. They might start by sharing small moments together, like watching the sunset after a mission. As they continue to interact, they find that they have a lot in common despite their differences. Aries' gentle nature softens Leo's more brash side, and Leo's passion makes Aries feel more alive. Their relationship could be a slow - burn one, with lots of tender moments and a few obstacles along the way, such as other characters being jealous or disapproving, but in the end, they could end up together.
A great fanfiction idea could be that Lucy and Leo get transported to an alternate dimension. In this dimension, the rules of magic are different, and they have to figure out how to get back home while also dealing with the strange new magical creatures and challenges there. This would test their relationship and their individual skills.
I'm not sure who the absolute best is, but some popular authors might be those who have a deep understanding of the Fairy Tail universe. They would be able to write Leo and Ar in a way that stays true to their characters. For example, an author who has been a long - time fan of Fairy Tail and has studied the lore and character traits.
There might be a fanfiction where Leo and Ar are faced with a great danger that threatens the Fairy Tail guild. They have to use their unique skills and the power of friendship to save everyone. For example, they could be up against a dark wizard who has a plan to destroy the guild, and Leo and Ar are the last hope. They start by gathering information, then formulating a plan that involves their combined magic abilities and the help of some of their guildmates.
The contrast between their personalities. Aries is timid while Leo is bold. This creates a lot of interesting dynamics in fanfiction. Writers can explore how they interact and grow from each other.