Yes, there are likely some. However, the quality can vary greatly. Some fanfictions may focus on Sakura learning unique jutsu from Jiraiya, which could lead to some exciting plot developments. Others might explore the character growth of Sakura in this new apprentice - master dynamic. But you have to be prepared to sift through a lot to find the gems.
There could be a plot where Sakura, under Jiraiya's apprenticeship, tries to use her knowledge of medical ninjutsu in combination with Jiraiya's combat and strategic teachings. For example, she could develop new ways to heal in the middle of a battle or use her medical skills to counteract some of the more dangerous jutsu that Jiraiya's enemies use. Also, there could be a sub - plot about Sakura's relationships with her friends in Konoha while she is away training with Jiraiya, and how they react to her new skills and experiences.
Well, in such a fanfiction, Sakura being Orochimaru's apprentice could lead to some really interesting character developments. For one, Sakura would likely gain a darker and more ruthless edge to her skills. Orochimaru is known for his unethical experiments and dark jutsu. Sakura might learn some unique medical ninjutsu from him that goes against the normal ethical boundaries in the ninja world. It could also put her in a conflicted position with her former teammates, especially Naruto and Sasuke. They might view her new association with suspicion and it would create a lot of drama and tension in the story.
A frequent theme is the inheritance of Kakashi's knowledge. Sakura may learn his unique combat styles, his way of thinking in battle, and even some of his ninja philosophies. Also, the theme of self - discovery for Sakura is often present. As she trains with Kakashi, she discovers new aspects of herself, like her untapped potential in areas she didn't expect.
A plot could involve Sakura being sent to train with Jiraiya because the village leaders see potential in her that they think Jiraiya can bring out. Jiraiya would first assess her skills and then start teaching her his own special jutsu. As she progresses, she might start to develop her own unique fighting style that combines what she learned from Jiraiya and her existing medical ninjutsu. There could also be a sub - plot about her dealing with the differences in Jiraiya's rather unorthodox teaching methods compared to what she's used to in the village.
Yes, there are some out there. You can start by looking on fanfiction websites like FanFiction.net or Archive of Our Own. Just search for the key phrase'sakura is jiraiya's apprentice' and you'll likely find a variety of stories with different takes on this interesting concept.
Well, obviously Sakura Apprentice herself is a main character. Often, there might be her mentor or the person she is apprenticed to as another important character.
One possibility could be that Sakura, under Kakashi's tutelage, further hones her medical ninjutsu skills. Kakashi, with his vast experience, might teach her some unique combat strategies that combine her medical skills with offensive moves. For example, she could learn to use her chakra scalpel in more creative and unexpected ways during battles.
One popular 'sakura kakashis apprentice fanfiction' is 'The Apprentice's Journey' which delves into the relationship between Sakura and her apprentice. It has an engaging plot that shows the growth of the apprentice under Sakura's guidance.