A Little Boy Who Transmigrated to the World of One Piece

One Piece: Unmatched Combat Power, Peak Martial Arts, and Awakened Devil Fruit

Looking for books similar to One-Yuan Instant Kill: From the Start, I Get Red-Haired Shanks' Conqueror's Haki! (The Age of Devil Fruits for All).

Are There No New One Piece Fics Anymore?

No harems or multiple heroines, no power scaling that falls apart, and definitely nothing brainless.

One Piece Stories Set in the Same Era as Rocks

One Piece fan fiction set in the same era as Rocks. Please, all you experts, grant me some books.

Are There Any Novels Where Someone Transmigrates into One Piece and Invents Things for a Faction?

Please, everyone, I'm counting on you!

Looking for Naruto Stories With Multiple Secret Identities and a Love of Chaos

I'd like to read something like "Naruto: The Jokester Black Zetsu Rules the Shinobi World!"

A Ship-Crew Story Where the Protagonist Is the Vice-Captain and Doesn't Change the Original Plot

I'd like to read something like "One Piece: The Mechanic of the Straw Hat Crew".

One Piece: Shanks’s Daughter, Uta