One idea could be that they team up to face a new, extremely powerful enemy that threatens the balance of the New World. This enemy could be a former Rocks Pirate member who was in hiding and now has a plan to take over. Shanks and Mihawk, despite their differences, realize they need to combine their skills.
A fan - favorite is 'The Meeting of the Two Legends'. It shows a scenario where Mihawk and Shanks meet in a more private setting. The story is full of great dialogue and a slow - burning relationship development that keeps you hooked.
If you like One Piece Doujin and Mihawk's novels, I recommend you to read One Piece's Domineering Power and A Thunder Blade Defends Marlin Fando. These two novels were based on One Piece, using the author's imagination and creativity to show different pirate worlds and pirate characters. The former focused on Vic's dominance and growth, while the latter described the story of the protagonist using the Breath of Thunder and swordsmanship to compete with the three generals for the position of general. I hope you like my recommendation. Muah!
Zoro would be an obvious choice. Since Zoro has always aspired to defeat Mihawk, a crossover could show them in a situation where they have to put aside their rivalry and fight together. It could be a great opportunity to explore their relationship further and how they might learn from each other in combat.
In my opinion, it could go either way. Mihawk is known for his amazing swordsmanship, but Shanks is a force to be reckoned with and has a lot of battle experience. It really depends on various factors during the fight.
It's a tough call. Shanks has his unique abilities and reputation, while Mihawk's sword skills are legendary. The winner would likely be determined by who can make the best use of their strengths and exploit the other's weaknesses in that particular encounter.
Some dedicated One Piece fan forums might also have fanfictions shared by members. For example, Reddit has some One Piece - related subreddits where fans might post their own works or recommend good Shanks x Mihawk fanfictions.
One great story could be 'The Unlikely Bond'. It explores how Shanks and Mihawk, despite their different outlooks, form a deep connection during a shared adventure on an uncharted island. They start to understand each other's values more and their relationship evolves in an interesting way.
The popularity of Mihawk x Shanks fanfiction lies in the mystery and allure of their relationship in the original work. They are both powerful and enigmatic characters, so fans love to explore what could be between them.