Lucy is often a key character in Ace Fairy Tail fanfiction. She could be the one to help Ace understand the Fairy Tail guild better, as she is new to the guild herself in the original story. Her celestial spirit magic might also interact in unique ways with Ace's powers.
Gray is another popular character. His cool - headedness could contrast with Ace's more impulsive nature. In fanfiction, they might start off as rivals but then become friends as they face common enemies together. Their different magic types, ice and fire - related in a sense for Ace, could also lead to some really cool battle scenes.
Obviously, Ace himself is a very popular character. His backstory from One Piece and his potential interactions with Fairy Tail characters make him interesting. Natsu is also popular in these fanfictions as he and Ace could have a great dynamic, given their similar personalities in terms of being hot - headed and powerful.
Lucy could also be a main character. She could provide support to Ace, perhaps with her celestial spirit magic. And they could develop a unique friendship or partnership as they face different challenges in the Fairy Tail world.
One popular theme is Ace's integration into the Fairy Tail world. Writers explore how he fits in, what kind of relationships he forms, and how his unique abilities play out in this new environment.
Natsu is often a very popular character. His fiery personality and powerful fire - dragon slayer magic make him a central figure in many fanfictions. He's always ready for a fight and his loyalty to Fairy Tail is a big part of his charm.
Natsu is extremely popular in Fairy Tail dragon fanfiction. Since he is a dragon slayer, many stories revolve around him. His relationship with Igneel and his search for his dragon father are often explored in different and creative ways. Another popular character is Wendy. As a sky dragon slayer, she has unique abilities that can be developed further in fanfiction. Writers might focus on her growth as a mage and her connection to the dragons.
Ichigo and Natsu are often popular characters in 'ichigo fairy tail fanfiction'. Ichigo with his unique powers from the Bleach universe and Natsu with his fire - based magic. Also, Erza is quite popular as she is a strong and complex character in Fairy Tail, and writers like to explore how she would interact with Ichigo.
Natsu is often a popular character in these fanfictions. His energetic and fearless nature makes him a great mentor or big brother figure to an adopted character. He can teach them about the importance of friendship and determination in the world of Fairy Tail.
Itachi himself is obviously a very popular character. His cool demeanor and powerful abilities make him a central figure in most of these fanfictions.
A must - read 'Fairy Tail Ace' fanfiction is 'Ace and the Fairy Tail Guild'. This fanfic focuses on Ace joining the Fairy Tail guild. It portrays the relationships he forms with the guild members, like Natsu and Lucy. The author does an excellent job of blending Ace's backstory with the Fairy Tail lore.
Natsu is often a very popular character in Fairy Tail Empire fanfiction. His powerful fire magic and his brash but endearing personality make him a great protagonist in many stories.
Gray is another favorite. His ice - make magic contrasts well with Natsu's fire, and his cool - headed (most of the time) nature can lead to interesting interactions. In fanfiction, he could be given new challenges related to his past or his magic, such as learning a new and more powerful form of ice - make magic.