Characters with strong enough haki, but even that would be tough to do against his meito, especially Wado Ichimonji and Enma. Wado Ichimonji remained intact from an assault by Mihawk. And that was without haki imbued on it.
Anyway, I find this topic pointless as Zoro will likely never have his swords broken again, and his haki will only continue to grow stronger over time.