Definitely, Sakura's sensei, Kurenai, could be a character in the fanfiction. Kurenai might have noticed some unique aspects of Sakura's family upbringing that affected her ninja skills. Then there's Shikamaru. His intelligence could be used to solve some mystery related to Sakura's parents. And Hinata could be included as well. Hinata's gentle nature could contrast with Sakura's more assertive parents. She could be a friend to Sakura who gets to know her parents on a different level, perhaps through some village - wide events or joint missions that involve Sakura's family.
One of the popular characters to include is Tsunade. Since Tsunade is Sakura's mentor, she might have some connection to Sakura's parents. Maybe she knew them when they were young or had some sort of agreement with them regarding Sakura's future. Naruto could also be a great addition. Naruto's friendship with Sakura means he might interact with her parents at some point. He could be the one who helps Sakura find out some long - lost secrets about her parents. Additionally, Sasuke might be included as he is an important figure in Sakura's life and his presence could add some drama to the story about her parents.
Sakura herself is often a key character in such fanfiction as it's about her parents. Her relationships with her parents can be explored deeply. Also, characters like Ino could be included. Ino might be Sakura's friend who has some interactions with her parents, like coming over for dinner or something. Another popular character could be Kakashi. As Sakura's teacher, he could have some insights into her family situation or be involved in a mission related to her parents.
One popular trope is the 'Underestimated Sakura' where she surprises everyone with her skills and abilities. Another is the 'Sakura's Growth' trope, which focuses on her development as a character, both in terms of her ninja skills and her personal relationships. There's also the 'Sakura as a Healer' trope, emphasizing her role as a medical ninja.
The main characters are obviously Sakura's parents. We might not know their names yet, but they are the central focus. Maybe her father is a strong - willed man with a sense of justice, and her mother is a gentle and intelligent woman.
There could be the patients, of course. Each patient might have their own unique backstory and personality. Maybe there's a young patient who is dealing with trauma, and Sakura has to find a way to reach out to them.
Poppy Peepleson can be a great addition. She is a bit of a diva, and her interactions with Vampirina can be full of drama. For instance, they could compete in a school talent show and there could be some friendly rivalry between them.
In a tactician fanfiction, the trickster character can be quite popular. They can add humor and a bit of chaos to the story. Their antics can either help or hinder the tactician's plans, making for interesting plot twists. Then there's the healer. In a world full of battles and danger, the healer is essential. They keep the characters alive and can also have their own story arcs related to their healing powers. Also, the mysterious assassin type of character is often included. They lurk in the shadows and can be used for stealthy operations in the fanfiction.
I don't know for sure, but since it's a fanfiction centered around Sakura Haruno, she is the main focus. However, it may also feature characters who had a major impact on her life. This could include her sensei, like Tsunade, who trained her in medical ninjutsu. There's also a possibility that new characters created specifically for this fanfiction could be main characters as well, but that's just speculation.
In some Sakura Haruno alpha fanfiction, Kakashi could be a significant character. He might act as a mentor to Sakura in her new alpha role. He could guide her in making difficult decisions, like when she has to choose between the safety of the village and the life of a comrade.
One interesting plot could be exploring how her parents met. Maybe her mother was a healer and her father a merchant, and they crossed paths during a time of war when her father was transporting medical supplies. Another could be a story about her parents' reaction when they first discovered Sakura's talent for chakra control as a young child. They could be overjoyed and start to train her secretly before she enters the academy.
The crossover aspect is also very popular. Writers like to imagine how the characters from Naruto and Death Note would interact. For instance, how would Sakura react to Ryuk? Would she be scared or intrigued? And how would Light view Sakura's abilities? These interactions between the two very different universes are often the focus of many fanfictions.
One popular theme is friendship. Sakura forming a deep bond with the Shiny Buneary is a common idea. Another theme could be adventure. They might go on an adventure together through the Naruto world, facing different challenges like dangerous enemies or difficult terrains.