There could also be some original female characters created specifically for the fanfiction. Maybe a female fire - bender who has a secret past and sees something in Naruto that makes her want to open up. She could be part of the harem, adding her own unique story and relationship with Naruto to the mix.
In the Avatar world, Katara could be one of the potential characters. She is strong - willed and caring, and might be attracted to Naruto's determination. Toph could also be a part of it. Her tough - as - nails attitude might find Naruto's unique powers interesting.
Well, Wonder Woman is an obvious choice. Her strong - willed and noble nature would be an interesting contrast to Naruto's more free - spirited ninja self. Another could be Zatanna, with her magic abilities. She might be curious about Naruto's chakra - based techniques which are somewhat similar to magic in a way. And then there's Starfire, whose alien nature and exuberant personality could lead to some fun interactions with Naruto.
Definitely Hinata. She already has strong feelings for Naruto in the original Naruto series. Sakura could also be part of it as she has a long - standing relationship with Naruto. From other series, if we're doing a crossover, Erza from Fairy Tail could be an interesting addition. She's strong, independent, and would make for an interesting dynamic in a harem situation with Naruto. Also, Rukia from Bleach could be another. She has a cool and collected personality which would contrast with Naruto's more exuberant nature.
Well, obviously Naruto himself would be a main character. His sister could be an original character created just for the fanfiction. In terms of the harem members, Sakura could be one. Even though she has feelings for Sasuke in the original series, in this fanfic she could see Naruto in a new light. Hinata is also a likely candidate as she already has deep feelings for Naruto. Another could be Ino, who might be drawn to Naruto's growth and newfound confidence in this alternate scenario.
In the Overlord world, Albedo could be one of the potential female characters. She is powerful and has a complex personality. In a harem fanfiction with Naruto, she might be intrigued by his different power system and his kind heart. Another could be Shalltear Bloodfallen. Her combat skills and beauty might make her interested in Naruto as well.
Sakura could be one. She's a strong and intelligent character. Her interest in medicine might make her curious about the blacksmith's skills in creating precise tools. Hinata is also a possibility. Her gentle nature might be drawn to the blacksmith's hardworking and creative side.
Definitely Naruto and the fem Kyuubi. Tenten could be part of the harem. She is a strong - willed kunoichi. Temari from the Sand Village could also be included. She has interacted with Naruto before and her feisty nature would make for an interesting addition to the harem. And of course, there could be some original characters created just for this fanfiction.
Definitely Hinata. Her love for Naruto is well - known, and in a post - apocalyptic world like Dead Rising, she would be by his side. Sakura could also join the harem. She has a complex relationship with Naruto and this new setting could change things. Then there's Temari. She's strong and independent, and in this new world, she might find herself drawn to Naruto. Karin, with her unique abilities, could also be part of the group of female characters in the harem.
In addition to the obvious ones like Sakura and Hinata, Ino could also be part of the 'naruto x yugito harem'. Ino has always been competitive with Sakura over Sasuke, but in this fanfiction scenario, she might see Naruto in a new light and be drawn to him. Tsunade could also be an interesting addition. She is a powerful and experienced ninja, and her relationship with Naruto as his mentor could potentially take on a different, more romantic - ish turn in the context of a harem fanfiction.
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.