Well, in addition to the ones mentioned above, Ino could be part of Naruto's harem. She's confident and has her own charm. Then there's also Temari. She's a strong - willed and powerful kunoichi from the Sand Village. Her relationship with Naruto could develop in an interesting way in a harem fanfiction. And don't forget about Karin, who has had some interactions with Naruto and could potentially be in the harem.
There are also some minor characters that could be part of Naruto's harem. For example, the Kunoichi from the Hidden Rain Village that Naruto met during his travels. Her different background and skills could make for an interesting addition. Also, some of the female genin from other villages that Naruto might encounter during international ninja events could end up in his harem, each bringing their own unique qualities to the group.
Typically, the main character would be an original character created for the fanfiction. He is usually the one around whom the harem forms. And of course, there would be characters from the Naruto series like Naruto himself, Sasuke, Sakura, etc. who might interact with the main character and the harem in various ways.
Tenten could potentially be in the harem. She is a strong - willed and capable kunoichi. Her presence in the harem could add an element of action and adventure. Maybe she initially tries to fight against the evil Naruto but then gets drawn into his world and eventually becomes part of his harem.
Obviously, Naruto himself as the lycan. Hinata could be one of the harem members as she has a long - standing crush on Naruto. Sakura might also be part of it, adding some tension due to her previous relationship with Sasuke. Then there could be Ino, who is strong - willed and could have an interesting dynamic with Naruto in this context. And Tenten, with her skills, could also be a part of the harem.
Obviously Naruto would be the main character. For the harem, it could include Sakura. She is strong - willed and her medical skills could be interesting in relation to Naruto's ghoul nature. Hinata is also a likely candidate. Her gentle and loving nature could contrast with Naruto's more dangerous ghoul side. And then there's Tenten, who could bring her weapon - using skills into the mix.
Well, Naruto himself is obviously a main character. As for the servants, Sakura could potentially be one. She has her own skills and a relationship with Naruto already in the original series that could be developed further in this fanfiction context. Hinata is also a likely candidate, given her long - standing feelings for Naruto.
It's also possible that some non - human characters could be part of the harem. For example, some of the tailed beasts in human form (if that's possible in the context of the fanfiction). They would bring their own set of powers and a very different kind of relationship with Naruto compared to the human characters in the harem.
There could be some original Arrancar characters created specifically for the fanfiction. For example, a young and curious Arrancar who is new to the ways of her kind. She meets Naruto and is immediately fascinated by his different appearance and abilities. And then there's a more experienced Arrancar who has seen many battles. She initially sees Naruto as a threat but then realizes his good intentions and slowly falls for him, becoming part of the harem.
In a crossover with Fairy Tail, Lucy could be part of the harem. She's a kind - hearted and intelligent wizard, and her relationship with Naruto could involve sharing magical and ninja knowledge. And from the Attack on Titan world, Mikasa might be included. Her loyalty and combat skills would create an interesting relationship with Naruto.
Naruto is a given in this fanfiction. In Kumogakure, Mabui could be part of the harem. She is intelligent and in charge of a lot of important operations in the village. Her relationship with Naruto could start from her helping him with some village - related tasks. Another potential character is Omoi. Although he is male, his interactions with Naruto could lead to the female characters around him taking more of an interest in Naruto, thus contributing to the harem idea.
Well, obviously Naruto himself would be the central male character. For the female characters in the harem, Sakura could be one. She might start to see Naruto in a new light when he overcomes his blindness with such tenacity. Hinata could also be part of it. Her shy and loving nature could be a great contrast to Naruto's more outgoing and determined personality in this scenario.