Another good pairing could be Kirby and Lucy. Lucy has her celestial spirits, and Kirby could interact with them in interesting ways. Maybe he could even learn to communicate with them on a deeper level. Plus, Lucy could use her intelligence to help Kirby understand the more complex aspects of the Fairy Tail world.
Kirby and Happy would also be a fun pair. They are both cute and have a certain naivete about them. Happy could fly Kirby around to different places in the Fairy Tail world, and they could get into all sorts of comical situations together while also being useful in battles with Kirby's powers and Happy's ability to carry small objects and people.
Kirby and Natsu would make a great pair. Natsu's fire - based magic and Kirby's ability to absorb and copy abilities could create some really cool combat combinations. They could both be hot - headed in their own ways and charge into battles without much hesitation.
Juvia is an obvious choice. Their relationship in the original series is full of interesting dynamics. Juvia's over - the - top love for Gray can lead to many comical and heartwarming situations in fanfiction. Another good option is Natsu. Their friendly rivalry can be explored further, like having them team up against a powerful enemy they couldn't defeat alone.
Lucy would also be a good pairing. She's intelligent and has a wide range of celestial spirits at her disposal. Sora could learn a lot from her about magic, and together they could use their different skills to solve mysteries or defeat enemies. Maybe Sora has some knowledge about the celestial world that Lucy doesn't, and they can share and grow together.
Natsu could be a great character to pair with Kinana. He's adventurous and his warm personality could bring out different sides of Kinana. Also, Gray would be an interesting choice. His cool and sometimes aloof nature could contrast well with Kinana's more reserved self. And Erza, with her strong leadership and warrior spirit, could form a great partnership with Kinana in a fanfiction, perhaps teaching her some combat skills.
Erza Scarlet would be a great character to pair with God Serena. She is a strong and determined mage, and their interactions could be filled with battles of wills and mutual respect. Another good option is Natsu Dragneel. Their different approaches to magic could lead to some interesting storylines, like a friendly rivalry. Gray Fullbuster could also work well. His cool - headedness could contrast with God Serena's more complex personality.
Gray would be a great character to pair with them. Gray has a long - standing relationship with Natsu, and his ice magic contrasts well with both Natsu's fire and Juvia's water. Their interactions can add a lot of humor and depth to the story, like Gray constantly arguing with Natsu while also trying to work together with Juvia.
Elfman could be a great character to pair with Evergreen. Their personalities are quite different, with Evergreen being more refined and Elfman being more rough - around - the - edges, which could create an interesting dynamic.
Gray could be an interesting pairing too. Gray's ice - make magic and Eve's magic (whatever it may be in the fanfiction) can create some really cool battle scenes. Their different fighting styles can lead to some great teamwork moments and character development as they learn from each other.
Natsu could be a great character to pair with Ophis. His fiery and impulsive nature could contrast well with Ophis's more mysterious and powerful self. They could go on quests together where Natsu's brute strength and Ophis's magic complement each other.
Natsu could be a great character to pair with Rahkeid. Their different personalities, with Natsu being hot - headed and Rahkeid having his own unique traits, could lead to some interesting interactions and adventures.
Erza would also be a good pairing. She is a very disciplined and strong - willed character. Goku could learn from her discipline, and she could learn from Goku's carefree yet determined attitude. They could fight side by side in battles and protect each other.