A common theme is adventure. Since it combines Naruto and pirate elements, there are always quests, exploring new places in the pirate world. Another theme is the development of relationships within the harem. Each female character has a unique bond with Naruto. Also, power - up is a theme. Naruto often has to adapt his skills and gain new powers to survive in the pirate world.
One popular 'naruto pirate harem fanfiction' is 'Naruto in One Piece: Harem Adventure'. It combines the unique elements of the Naruto and One Piece worlds in an interesting way. The main character Naruto finds himself in the One Piece universe and gradually builds his own harem. Another good one could be 'Pirate Naruto's Harem Quest', which has a lot of action and character development along with the harem aspect.
Often, 'abandoned naruto pirate fanfiction' may show signs of a lack of consistency. The author may have started with a certain vision but as they abandoned it, the flow and coherence of the story can be disrupted. Also, there might be unresolved conflicts that were left hanging because the writing was discontinued.
In 'Naruto is a pirate' fanfiction, a frequent theme is power. Naruto's ninja powers are often pitted against the challenges of the pirate world. For instance, his ability to use chakra could give him an edge in battles at sea. Another common theme is discovery. Naruto discovers new things about the pirate world, like different types of ships, weapons, and pirate traditions. And of course, there's the theme of loyalty, as he has to decide who to be loyal to in this new and dangerous world.
A highly trained assassin with both ninja and pirate skills could also be the most powerful. Imagine an assassin who has mastered the art of silent killing like a ninja but also has the knowledge of poisons and navigation like a pirate. This character could move in the shadows, taking out opponents without being detected, and using their diverse skills to outwit any enemy, be it a powerful ninja like Naruto or a fearsome pirate captain.
Definitely Hinata. Her love for Naruto is well - known. Sakura, too, as she has grown closer to Naruto over the years. Ino might also be in the harem. She has had her own moments with Naruto and her skills as a ninja could be an asset. And perhaps Karui from the Cloud Village. After Naruto's peace - making efforts between the villages, she could have developed feelings for him.
Sakura would be a likely candidate. She has a long - standing relationship with Naruto, so she could be part of the harem. Hinata is also a strong possibility as she has deep feelings for Naruto. And Ino, who has known Naruto for a long time and has her own charm, could also be in the harem.
One possible plot could be that Naruto, with his ninja skills and strong will, joins a pirate crew. He might use his Rasengan as a unique weapon against other pirates or sea monsters. His ability to make friends quickly would help him bond with the crew members, and he could introduce some ninja - like strategies for ship battles.
The most interesting aspect is the clash of different power systems. Naruto's ninja abilities like chakra and jutsu are very different from the devil fruits and haki in the pirate world. Seeing how these interact, for example, Naruto's Rasengan against a pirate's devil fruit power, is really exciting.
In the 'naruto pirate lord fanfiction', Naruto is the main character. He is likely to be joined by characters like Sakura, who could provide medical support in the pirate adventures. There may also be some powerful pirate lords who serve as the main antagonists. These pirate lords would have their own motives and goals, like controlling the most valuable trade routes or finding a legendary treasure. And Naruto would have to face them, using his ninja skills and his new - found knowledge of the pirate world.