20 fodders you said are elite Kumo ninjas which is strong village. And 2 of them is Kinkaku and Ginkaku and their kyuubi chakra and their tools. So they're not fodders. OT: I think tobirama is on level with Minato imo. HE'S THE Bro of The God Of Shinobi and a Senju and a badass.
As a matter of fact, we know that Hiruzen is stronger than Hashirama, Tobirama and base Minato.
However, since Minato has KCM now he's out of that statement, so perhaps he could be even the strongest
or the second strongest after Hiruzen?