Doctor Doom. Then Galactus and I think Kang would be better for The Young Avengers or Fantastic Four.

And why not someone with less "prestige" than Dr. Doom, Galactus or Kang? I'd like to see Michael Korvac, a take on Lilith (with Blade and Ghost Rider), or even Vulcan (the third Summers brother). Or if you wanted to up the ante a bit more, why not go full on comic book and do the Masters of Evil, or the Sinister Six? I'm just brainstorming here.

I think that just like with Spider-Man, they'll try to stay away from villains they've already used, at least for a while. So from what you've presented, it's probably Kang (despite the fact that time travel has been already used as a plot device).

Out of these options, I would take Doctor Doom. Mainly because after Thanos, I feel I'd be really tired if they introduced another huge cosmic overlord villain. Thanos was great, but another like that will be quite tiring. Not Galactus, not Kang, not Dormammu, or characters like that. Don't want to see anything like that for 5 years minimum.

Doctor Doom, of these, is the most interestingly different in terms of being more of a human villain and working through scheming, which I think can be a lot more interesting. Zemo is one of my favourite MCU villains for that reason. So something like that, sure.

Doctor Doom could fill the void with Loki, as the villain that appears in multiple movies. I just hope they cast the right person to play him.

It’s looking like Dr.Doom 😂

Dr. Doom

Docter doom ore the green goblin but everybody is talking about galactus, but i think they have to do him later on in the mcu

Kang is not tiring for the Avengers just annoying like Loki

Galactus