Meilin from Spirit Animals and Gray from Fairy Tail could be paired. Meilin is a disciplined fighter with her own spirit animal. Gray is an ice - making wizard. Their personalities are quite different, with Meilin being more reserved and Gray having a bit of a cool - headed yet sometimes comical personality. They could learn a lot from each other, especially in combat where Meilin's strategic thinking and Gray's ice magic could complement each other.
Gildarts and a powerful, ancient spirit animal. Gildarts is one of the strongest mages in Fairy Tail. If he were to partner with a very powerful and perhaps wise old spirit animal, it would be a very dynamic duo. They could face the most difficult challenges together and their combined strength and knowledge would be a great asset in the story.
Definitely Luffy and Natsu. They both have an insatiable appetite and an unwavering determination. They would get along really well, with Luffy being amazed by Natsu's fire magic and Natsu being interested in Luffy's rubber powers. Another interesting pairing could be Zoro and Erza. They are both incredibly strong and skilled swordsmen (swordswoman in Erza's case). They could exchange sword - fighting techniques and have some epic battles together.
I think Natsu and Ruby would be an interesting pairing. Natsu is all about brute force and his love for fighting, and Ruby has her own determination and speed. They could learn from each other's combat styles. Ruby could show Natsu how to be more strategic with his attacks, while Natsu could teach Ruby how to be more fearless in the face of danger.
Definitely Spiderman and Natsu. Natsu's brash and fiery personality would contrast with Spiderman's more responsible and cautious nature. They could have some great banter while fighting side by side.
Another cool pairing could be Sakura and Erza. Sakura is a strong female ninja with her own set of skills, especially in medical ninjutsu. Erza is a powerful and fearless mage in Fairy Tail. They could bond over their strength and leadership qualities. Erza could teach Sakura some combat techniques from the world of magic, while Sakura could share her knowledge of healing with Erza.
A really interesting pairing could be Makoto Naegi and Natsu Dragneel. Makoto, with his positive and determined attitude, could befriend Natsu easily. Natsu's impulsiveness and Makoto's more level - headed thinking could create an interesting dynamic. They could team up to face challenges, with Makoto providing the strategic thinking and Natsu the brute force.
Inuyasha and Natsu would be a very interesting pairing. Inuyasha is a half - demon with his own set of powers and a bit of a rough - around - the - edges personality. Natsu is a powerful dragon slayer with a hot - headed and passionate nature. They could start off as rivals, constantly trying to one - up each other in terms of strength and ability, but then gradually become friends as they face common enemies. Another interesting pairing could be Kagome and Lucy. Kagome has her spiritual powers and comes from a different time, while Lucy is a celestial wizard. They could bond over their different magical abilities and their strong wills.
Spyro and Natsu would be an interesting pairing. They both have a connection to fire. Natsu is a fire dragon slayer, and Spyro can breathe fire. They could have some epic battles together or team up against a powerful fire - based enemy. Another interesting pairing could be Spyro and Lucy. Lucy has her celestial spirits, and Spyro's otherworldly nature could add an interesting dynamic to their interactions.
Wanda Maximoff and Juvia would be a fascinating pairing. Wanda's powerful magic and Juvia's water - based magic could create some really unique and powerful combinations. Also, their different personalities - Wanda's more brooding and Juvia's more love - struck - would make for some interesting interactions.
Goku and Natsu would be an interesting pairing. Natsu is all about passion and brute strength in his use of fire magic, and Goku has his Saiyan power and love for a good fight. They could have some epic battles together, like sparring to see who's stronger, and also team up to take on tough enemies. They both have a bit of a reckless streak too.