Injustice Superman and Dark Phoenix are king and queen of Earth. What would it take to overthrow them?

Let's imagine that Injustice Superman and Dark Phoenix got married and declared themselves king and queen of Earth, respectively. Who all would be needed (from either DC or Marvel) to overthrow them?

For Dark Phoenix, Jean Grey's consciousness is completely wiped, so trying to appeal to Jean won't work. Her only limitation is when Superman says she's taking things too far, but if she thinks he's being stupid about something, then she won't listen to him.

Superman's limitation is that he actually wants to be king forever, so he's not interested destroying everything.

What's the minimal set of superheroes needed to overthrow them?

What would be the ideal team to take them on?