Yes, there are. Some might feature characters from Dragon Ball Z and Fairy Tail teaming up to fight a common enemy. For example, Goku and Natsu could join forces. Their different powers, like Goku's Saiyan abilities and Natsu's dragon slayer magic, would create really exciting battle scenes.
A common trope is the team - up against a powerful villain. This could be a super - strong demon from Fairy Tail's lore combined with an evil force from Dragon Ball Z. The heroes from both series then have to put aside their differences and work together. Also, the 'rivalry' trope is often used. For instance, Natsu and Goku might start off as rivals, competing to see who is stronger, but then they realize they need to work together. And of course, there's the 'training' trope, where characters from one series train the characters from the other series in their respective fighting styles.
One possible plot could be that the Fairy Tail guild discovers a strange energy similar to the ki in the DBZ universe. Natsu, being the curious and powerful wizard he is, decides to investigate. He then somehow gets transported to the DBZ world. There, he meets Goku, who is intrigued by Natsu's magic. Together, they have to face a new enemy that is a threat to both their worlds. This enemy could be a powerful wizard who has found a way to combine dark magic with the power of the dragon balls.
It's really hard to say. Goku in his Super Saiyan Blue form has incredible power levels and combat abilities. But then again, Acnologia from Fairy Tail is an extremely powerful dragon. If he were to face Goku, his dragon - like abilities and powerful magic attacks could pose a real threat. However, Goku has the ability to keep getting stronger during a fight, so it could go either way.
One great 'dbz and fairy tail fanfiction' is 'The Dragon's Alliance'. It combines the power systems of both universes in an interesting way. The characters from DBZ and Fairy Tail interact in a believable manner, like when Goku and Natsu compete in a friendly spar. Another good one is 'Fusion of Worlds' which has an exciting plot where the villains from both worlds team up, forcing the heroes to do the same.
A great idea for this crossover fanfic would be to focus on the friendship aspect. Both DBZ and Fairy Tail have strong themes of friendship and loyalty. You could have Goku and Natsu become friends and learn from each other. Goku could teach Natsu about self - improvement through training, while Natsu could show Goku the importance of having a guild family. Their combined efforts could be used to defeat a powerful villain that threatens both their worlds, like a new kind of fusion between a DBZ villain and a dark guild master.
Well, writing a good 'dbz and fairy tail fanfiction' isn't easy. You should focus on creating a believable crossover. Consider the different cultures in the two series. In DBZ, it's more about martial arts and power - based hierarchies, while Fairy Tail is centered around magic and guild camaraderie. Develop a conflict that makes sense for both sets of characters. For instance, a powerful villain who wants to steal the power of both the Dragon Balls and the powerful magic in Fairy Tail. When writing the characters, don't make them act out of character. If you're writing about Vegeta, remember his pride and his journey towards redemption. And don't forget to add some humor, like how the Saiyans might misunderstand some of the Fairy Tail magic.
If DBZ Goku were in Fairy Tail, his sense of justice would fit right in. He could form strong bonds with the Fairy Tail members. His training regime might even influence some of the wizards to train harder. And when it comes to battles, his ability to sense energy would give him an edge over many foes. He could also learn some of the Fairy Tail magic techniques and combine them with his own powers in really interesting ways.
The appeal of 'fairy tail dbz fanfiction' lies in the combination of two very popular and distinct universes. Fans of both Fairy Tail and Dragon Ball Z get to see their favorite characters in new situations. For example, seeing Natsu use his fire magic against a Saiyan's energy blast is exciting.
Goku and Natsu would be an interesting pairing. Goku's pure - heartedness and love for fighting would mesh well with Natsu's fiery and passionate nature. They could have some epic battles together just for fun, and then team up to take on stronger foes. Another good pairing could be Vegeta and Gray. Vegeta's prideful and somewhat cold demeanor would contrast with Gray's cool - headedness. They could learn from each other's fighting styles, with Vegeta showing Gray some of his Saiyan techniques and Gray teaching Vegeta about his ice - make magic.