One common theme is the power struggle. With Naruto having a harem and the hollow element involved, there's often a struggle for power. Naruto might have to use his hollow powers to protect his harem from other powerful forces in the Naruto universe.
One popular 'hollow naruto harem fanfiction' could be 'Naruto: The Hollow's Harem'. In this type of fanfiction, the concept of Naruto having a harem is combined with elements related to the 'hollow' which might bring in unique plot twists. For example, it could involve Naruto having to deal with the powers and challenges associated with the hollow while also navigating his relationships with the multiple characters in his harem.
Rukia could be in the harem. She has a connection with Ichigo already and her strong personality might be drawn to the power and mystery of Hollow Ichigo. Orihime is also a likely candidate. Her kind and loving nature could be what makes her want to reach out to Hollow Ichigo and be part of his harem.
Obviously Naruto would be one of the main characters. And among the Hollow harem, there might be some well - known Hollow characters like Orihime Inoue (who has Hollow - like powers in the original series) or other original Hollow characters created specifically for the fanfiction.
One interesting plot could be the Naruto characters interacting with Hollow characters in a unique way. For example, Naruto might use his ninja skills to help the Hollows deal with some internal conflicts in their world. Maybe they team up to fight a common enemy that threatens both the ninja world and the Hollow realm.
Well, one possibility could be that Hollow Ichigo's dangerous and alluring nature attracts various characters into a harem. For example, some might be drawn to his power, while others are intrigued by his complex personality. His wild side might make for some intense and passionate interactions within the harem.
Well, 'naruto is a hollow fanfiction' might be a really unique take on the Naruto universe. If we consider 'hollow' in a more general sense, like an empty or void - like state, it could be a story that explores Naruto in a state of emotional or spiritual hollowness. Maybe he has lost his purpose or something has made him feel empty inside, and the fanfiction delves into that aspect of his character in a new and creative way.
One great Naruto and Hollow fanfiction is 'Naruto: Hollow Shinobi'. In this fic, Naruto discovers a strange power related to Hollows. It has an interesting plot where Naruto has to learn to control this new power while still dealing with the regular challenges in the Naruto world. The character development is quite engaging as Naruto becomes more complex, having to balance his normal ninja skills with the Hollow - like abilities.
I'm not sure specifically as there could be many interpretations in such a fanfiction. It might be a story where Naruto has some connection to a 'hollow' concept, perhaps borrowing elements from other fictional universes. It could involve Naruto having unique powers or a different origin story related to the 'hollow' idea.