1. Shikamaru:  Known for talent and intelligence, Shikamaru became a Chunin at a young age. His strategic abilities and leadership skills make him qualified for Hokage.

2. Shisui: Sacrificing his life to prevent the Uchiha clan rebellion, Shisui was a genius among the Uchiha. 

3. Jiraiya: As one of the Legendary Sannin and Naruto's mentor, Jiraiya was one of Konoha's strongest shinobi. If he hadn't died in the Pain Invasion, he would have been a better Hokage than Tsunade. His strength and experience surpassed Tsunade significantly. 

4. Itachi:  Itachi made significant sacrifices for the village and deserves a Hokage position.