Well, often you'll see themes like self - discovery. Both Naruto and Rangiku have their own personalities and pasts. In the fanfiction, as they fall in love, they might also discover new sides of themselves. Also, the theme of sacrifice can be present. They might be willing to sacrifice things for each other's sake in the story. And of course, the theme of adventure, as they go through various situations together.
One common theme could be the clash of their different worlds. Naruto is from a ninja - filled world, while Rangiku is from the Bleach universe. Writers might explore how they overcome these differences to be together. Another theme could be the growth of their relationship, starting from initial attraction to deep love.
Another theme is the discovery of new powers. Given Naruto's ninja abilities and Rangiku's own skills in her universe, some fanfictions explore what happens when they combine their powers or learn new ones from each other. This can lead to some really exciting action scenes and unique plot developments.
One common theme is the 'opposites attract' concept. Toshiro is often seen as more serious and reserved, while Rangiku is more carefree. Their differences create an interesting dynamic in the fanfictions. Another theme is the idea of loyalty and how their love for each other is intertwined with their loyalty to their comrades.
One common theme is friendship. Since Rangiku has a lot of friends in the 'Bleach' universe, fanfictions often explore her deep bonds with them, like with Ichigo or Renji. For example, stories might show how she helps them through tough times.
One common theme is the reaction of their friends and comrades. How will their fellow characters in the original series react to the news? Another theme could be the challenges they face during the pregnancy, like Rangiku's health concerns perhaps.
One common theme could be the exploration of their relationship in a more romantic and sometimes passionate way. Another might be the development of their characters within the context of this new relationship.
One common theme might be the forbidden nature of their relationship. Given their different backgrounds in the Bleach world, a story could play on the idea that their relationship is something that goes against the norms or expectations of their respective groups. For example, Ichigo being a human - turned - Soul Reaper - like being and Rangiku being a Soul Reaper, there could be complications and tensions that add to the allure in the fanfiction. However, it's important to note that such content should be consumed with appropriate caution as it may not be suitable for all ages.
I'm not really familiar with the exact common themes in such specific fanfiction. But generally in fanfiction about two characters, themes like the exploration of their personalities in relation to each other could be there.
There are definitely some. A lot of fanfiction writers like to explore unique pairings like Naruto and Rangiku. Some might focus on creating a whole new universe where they meet and fall in love. You could also look for ones that are rated highly by other readers for a better chance of finding a great story.
One common theme is the struggle between love and duty. Naruto has important ninja duties, and in these fanfics, his love often conflicts with what he has to do for the village. For example, he might have to choose between going on a dangerous mission or staying with his loved one.
I'm not sure specifically as there could be many different takes on it. But it might be a fan - created story where Naruto is somehow the son of Rangiku, perhaps involving some sort of crossover or alternate universe concept where the Naruto and Bleach universes collide in this strange family relation way.