First, the obvious one: Zeus. No human in the list so far can beat him, and he wouldn't even need to go Adamas for most cases, just his first buff form it's enough. In a similar way, Poseidon claps most human fighters due a combination of speedblitz + stab. Simple, but effective.
Now, imo, save for maybe Kojiro (and Adam, given the ambiguity of his powers), every human so far loses to Thor. His destructive power coupled with Mjolnir's hard resistance makes him OP af and he never holds back himself in a fight, so, yeah. I think, however, Lu Bu could have beaten him if wasn't due to him destroying his glove and not using Sky Eater at the beginning of the fight, that could have either killed or severely injured Thor.
I also think Zero could beat every Human we’ve seen this far
I think that too. Zerofuku may be an angsty emo kid, but his weapon alone gives him a huge advantange over other combatants due sheer Area of Effect alone, and we haven't even see everything he can do (I confidently think Zero will pull more than his Misery Cleaver during the fight). He's crazy OP too.