1. Chi Rabi: After the end of the Fourth Great Ninja War, Chi Rabi is still one of the top fighters in the ninja world, stronger than several current Kage. 

2. Yakushi Kabuto: During the Fourth Great Ninja War, Yakushi Kabuto was defeated by Itachi Uchiha and subsequently redeemed himself. He is now the head of the orphanage in Konohagakure, having left the ninja world. 

3. Orochimaru: Orochimaru can be considered the true winner of the entire Naruto series. Initially a villain, he later redeemed himself and achieved ultimate freedom. 

4. Rock Lee: Although Rock Lee has left the ninja world, he still possesses absolute power at the level of a Kage. Despite losing a leg, Rock Lee can still activate the Eight Gates, making him one of the strongest forces in the ninja world . 

5. Tenten: During the Fourth Great Ninja War, Tenten unexpectedly obtained the treasures of the Six Paths Sage, gaining the Bashōsen, Hōrinken, and Red Gourd. With these artifacts, Tenten has gained enhanced abilities.