First, give them distinct physical traits. For example, a character with bright purple hair or eyes that change color depending on their mood. Then, give them a unique backstory. Maybe they were raised in a different village than the main Naruto ones and have different cultural values.
One idea could be that the OC team is on a mission to retrieve a rare and powerful ninja artifact that has been lost for centuries. This could lead to battles with other ninja clans who also want the artifact.
The scenario where Team 8 saves Team 7 instead would be quite interesting. It could introduce new conflicts and resolutions, and potentially reveal hidden strengths of Team 8 that weren't previously showcased.
In many 'Naruto Shizune OC Team' fanfictions, the theme of loyalty stands out. The OC shows loyalty to Shizune and the team, and in return, they receive loyalty from their comrades. Additionally, the exploration of different ninja techniques and how the OC can contribute to the team with their unique skills is also a frequent theme.
Kurenai might be a good sensei for Naruto's different team. Her expertise in genjutsu would be valuable. She could help the team develop their skills in this area, especially if the new team members have some potential in genjutsu. Kurenai is also very perceptive, which would be great for guiding Naruto and his new teammates through difficult situations.
Sakura would be heartbroken. She'd likely spend hours upon hours by Naruto's side, trying to jog his memory with stories of their adventures together. She might even get a bit overbearing in her attempts. Sasuke, who has his own complex relationship with Naruto, would be conflicted. He'd see Naruto's forgetfulness as a sign of weakness at first but then realize the importance of their bond. Kakashi, being the experienced leader, would start by observing Naruto carefully to see exactly how much he has forgotten and then start a systematic process of helping him remember.
Some 'oc on team 7 fanfiction' focuses on the OC being from a different village or culture. For instance, an OC from a water - based village that has unique fighting styles and traditions. When they join Team 7, they introduce new techniques like water - based jutsu that the others haven't seen before, which makes for really exciting storylines as the team has to adapt to this new element in their battles and training.
One interesting 'oc team 7 fanfiction' could be about an OC with a special power joining Team 7 on a mission to save a village from a powerful dark wizard. The OC's power might be something unique like the ability to control time briefly, which adds a new dynamic to the team's usual tactics.
One idea could be creating an OC who is a long - lost relative of one of the A - Team members. For example, a niece or nephew who has unique skills and joins the team on a special mission. This can add a new dynamic to the group and explore family relationships within the context of their adventures.