Another concept might be the meeting of the different universes' characters. Picture Luffy and Goku teaming up to fight a common enemy. Their different personalities would create an interesting dynamic. Luffy's carefree and adventurous nature combined with Goku's love for a good fight and his pure-heartedness could lead to some really fun and exciting storylines.
One of the popular pairings is Goku and Luffy. They are the main protagonists of their respective series and fans like to imagine them as friends or even more in some fanfics. Their combined strength and different ways of approaching challenges make for an exciting relationship to explore.
One popular theme is crossover, where characters from Dragon Ball Z and One Piece meet and interact. It's really exciting to see Goku and Luffy team up or fight against each other. Another theme is 'what if' scenarios, like what if a certain character had different powers or made different choices.
There's also 'Dragon - Pirate Alliance'. This fanfiction delves deep into how the Z - Fighters and the Straw Hat Pirates would form an alliance. It explores the different cultures and fighting styles of the two groups. For example, how Vegeta's pride would interact with Zoro's sense of honor, and how Gohan's intelligence could be used in conjunction with Nami's strategic thinking.
The new storylines that can be created. For example, a new villain could emerge that requires the combined efforts of both the One Piece and Dragon Ball Z crews to defeat. This could involve battles in different settings from both universes, like fighting on the Grand Line and also in the Hyperbolic Time Chamber. It gives a whole new perspective to the existing story arcs of both series.
In this fanfiction genre, there could be a crossover where the Dragon Balls are found in the One Piece world. The Straw Hats might then embark on a journey to collect all seven Dragon Balls, with the Z - fighters showing up at some point to either help or cause some conflict. There could also be a situation where characters from both universes exchange training methods. For instance, Zoro could learn some Ki - based sword techniques from the Z - fighters, while Gohan could learn how to be more resourceful like the Straw Hats in combat situations.
Sure. One popular 'One Piece Dragon Ball Z crossover fanfic' is 'The Saiyan Pirate'. It has an interesting plot where Goku somehow ends up in the One Piece world and teams up with Luffy to fight a new common enemy. Another one is 'Power of the Grand Line', which combines the unique powers from both universes in a really cool way.
You can try fanfiction websites like FanFiction.net or Archive of Our Own. There are usually a lot of Dragon Ball Z and One Piece fanfics there. Just search for the relevant tags.
😋According to your needs, I recommend the following two novels:
1. "One Piece's Strongest Vice Emperor Mr. 3": The main character transmigrated to the world of One Piece and became Mr. 3, a Wax Fruit ability user. He established the Cross Union and fought against all kinds of top forces. In the end, he successfully pushed Baki the Clown to the throne of One Piece and became the Strongest Vice Emperor.
2. "Comic manga: Six Paths of Reincarnation": The protagonist transmigrated to the comic world and came to the Dragon Ball world through the Six Paths of Reincarnation. He copied the abilities of others to book different worlds and obtained the Fire Creation Formula with invincible growth attributes. He pursued the peak of power with various magical powers.
I hope you like this fairy's recommendation. Muah ~😗
They blend the universes by incorporating the power systems. For instance, in some fanfictions, characters might use Devil Fruits while also having the ability to sense and use ki. Also, character interactions play a big role. Luffy's carefree nature might influence Goku's more straightforward approach to life.