Well, often in baby Kurama fanfiction, a common theme is the bond he forms. For example, if he's taken in by someone kind, the story might focus on how that relationship evolves. Also, his mischievous side as a baby can be a theme. He might use his limited powers in unexpected ways just for fun or to get what he wants, like getting extra food or a cozy place to sleep. And sometimes, it's about how the baby Kurama adapts to a new environment that is different from his original one.
In baby Kurama fanfiction, the theme of protection is quite prevalent. Since he's in a baby form, he's more vulnerable. So, the stories could be about characters in the Naruto universe coming together to protect him. There might also be a theme of mystery surrounding his baby form. Maybe some characters don't recognize him at first and there are plot twists as they gradually figure out who he really is. Additionally, his baby form could be a source of cuteness and humor, with him getting into comical situations that are endearing to the readers.
Another theme is Chibi Kurama's adventures in the ninja world on his own. For example, he might go on a quest to find a special treat that only exists in a certain part of the forest. This theme allows for a lot of creativity in terms of the places he visits and the characters he meets along the way.
One popular theme is the struggle with their different natures. Kurama is more calm and composed while Hiei is hot - tempered. Fanfictions often explore how they overcome these differences in a romantic relationship.
One popular theme is the power - up. Fanfictions often explore how Naruto's connection to Kurama, especially his fox tails, gives him new and stronger abilities. For example, some stories might have Naruto being able to use his fox tails as weapons or shields in unique ways.
One popular theme could be protection. For instance, a story might have a character using hypnosis to protect a baby from an unseen danger. Another theme could be discovery, like using hypnosis to discover a baby's hidden past or abilities.
One common theme is identity. Kurama has to figure out how his demon self and his human self coexist. Another theme is friendship. Since he's in the human world, he forms relationships with humans which often play a big role in the stories.
One common theme is friendship. Many fanfictions focus on the development of a strong friendship between Kurama and a female character. They might start off as strangers or even enemies and gradually grow to trust and rely on each other.
One common theme is friendship. The OC might form a deep bond with Kurama, perhaps helping him understand the human world better or vice versa. Another theme is adventure. They could go on quests together within the Naruto universe, facing various challenges.
Protection is a common theme. Given Kurama's power, he often becomes the protector of the pregnant character. Another theme is the anticipation of new life. The story might focus on how everyone around the pregnant person, including Kurama, is excited and nervous about the upcoming birth.
Well, Sasuke can be one of the characters paired with baby Kurama in fanfiction. It could be an interesting dynamic as Sasuke is usually more aloof, and seeing how he reacts to a baby Kurama can create an engaging story. Also, Kakashi is a common choice. His calm and experienced nature would contrast with the baby Kurama's naivete and inquisitiveness. He could be in a role of mentoring or protecting the baby Kurama in these stories.
Some fanfictions focus on the baby Ben 10 characters being taken care of by other characters. It could be an older version of one of the main characters or a side character who has to babysit them. This leads to all sorts of comical situations as they try to keep the baby versions of the heroes out of trouble. There are also themes about the baby characters' first encounters with new aliens in a more cutesy and less dangerous context compared to the regular Ben 10 stories.