Without more information about your current lineup and your preferred play style, it's difficult to make specific recommendations. However, some top tier ninjas that are often used in lineups are Itachi Uchiha, Minato Namikaze, and Obito Uchiha. They are all powerful and versatile ninjas that can work well in different team compositions. You c*so consider using some support ninjas like Konan or Temari to enhance your team's overall effectiveness. Ultimately, it's important to experiment and find a combination of ninjas that work best for you. Good luck!