There are likely some 'bleach naruto son of yoruichi' fanfictions that are good. It really depends on what you're looking for in a fanfiction. If you like crossovers that explore family relationships and how a character from one universe fits into another, it could be interesting. You might have to sift through a few to find one that's really well - written though.
Since Yoruichi has strong spiritual energy in her world, Naruto might inherit some form of enhanced chakra that has spiritual aspects to it. This could give him new jutsu or abilities that are a blend of his original ninja skills and this new spiritual - chakra power. For example, he could use his new power to sense things in a different way, like Yoruichi can sense spiritual presences.
One common theme is identity. Naruto having to figure out who he is now that he has this new connection to Yoruichi. Another could be power. How does being related to Yoruichi affect his power level and how he uses his abilities in the combined Bleach - Naruto world.
Well, in such a fanfiction, it might explain that Yoruichi, with her unique abilities and background, discovers Naruto in some extraordinary situation and decides to take him in as her son. Maybe she sees a special potential in Naruto that is similar to something in her own nature or abilities.
He could possess the power of the Rasengan. Yoruichi could potentially use it in different forms, like a long - range Rasengan blast or a more concentrated, close - range version for melee combat. And maybe Naruto's chakra nature could also be incorporated, allowing Yoruichi to use wind - based attacks more effectively.
In a 'godlike naruto x yoruichi' fanfiction, Naruto could be on a quest to master a new form of his power. He meets Yoruichi, who has knowledge of unique energy forms. She decides to help him, and during their training sessions, they develop a deep bond and fall in love.
There could be many interesting fanfictions involving Naruto and Yoruichi. One possibility is that they could be from different universes but are brought together by some sort of magic or interdimensional rift. In the fanfiction, they might start as rivals, each with their own set of skills. Naruto's ability to use chakra and his ninja techniques like the Rasengan, and Yoruichi's incredible speed and shunpo ability. As the story progresses, they could learn from each other and develop a deep friendship. They might also team up to face a common enemy that threatens both of their worlds.
One plot could be that Yoruichi gets lost in the Naruto universe. Naruto finds her and, being the helpful person he is, offers to help her find her way back home. Along the way, they encounter various challenges. They might have to face off against some of Naruto's enemies who see Yoruichi as an unknown threat. As they overcome these challenges, they develop a bond. Yoruichi might teach Naruto some of her unique skills, and Naruto could show Yoruichi the importance of having a strong community, like his village, which is something she might not have in her own world.
In this kind of fanfiction, Naruto's unique abilities like his shadow clones and rasengan could potentially be incorporated into the power of the zanpakuto. Maybe the zanpakuto would gain the ability to create multiple copies of itself, similar to the shadow clones, which could be used for both offense and defense. And the rasengan could be transformed into some sort of energy blast that the zanpakuto can release.
Dumbledore could be a powerful ally. He has a deep understanding of magic and would be interested in exploring Harry's new abilities. Also, some of the more open - minded members of the Order of the Phoenix might see the potential in Harry's unique heritage and support him, like Lupin or Sirius if they were still alive in the fanfiction.