Naruto's summoning abilities are one of the most fascinating aspects of his ninja arsenal. While he primarily uses the toads from Mount Myoboku through his contract with Gamabunta, the series does hint at the possibility of multiple summoning scrolls. During the Fourth Great Ninja War, we see him summoning toads, toads alongside other creatures like Kurama's chakra avatar, which suggests flexibility. However, the manga and anime never explicitly show him using separate scrolls for different species. It's more about his chakra control and versatility—like when he combines Sage Mode with summoning. I always wondered if he ever considered branching out to other contracts, like snakes or slugs, just to mix things up!
That said, summoning isn't just about scrolls; it's about bonds. Naruto's deep connection with the toads makes them his go-to, and adding more scrolls might dilute that relationship. Plus, imagine the chaos if he accidentally summoned a giant slug mid-battle while trying to call Gamakichi! The logistics alone would be a nightmare. Still, it's fun to speculate—what if he'd inherited Jiraiya's other contracts? Maybe in an alternate universe, we'd see Naruto with a whole zoo of summons.