AOC will never win a presidential election. Straight up. She has too much baggage from how far the Reps have been dragging her through the mud.
The Dems best shot would be a relatively "new" unknown that quietly gets good results in the background and then gets put on-stage right in the run ups for election season. Someone with no scandals (and no "scandals" either), good results, that's relatively young (no one 50+, and I'd say 45+ is pushing it tbh), with some genuine charisma, and knows how to communicate in simple and clear terms without coming off condescending, AND who will unequivocally say that they aren't aiming for bipartisanship because republican politicians (key word to always emphasize, POLITICIANS) always make shit worse for their voters and everyone else.
Oh and how did I forget. They need to push that they're trying to benefit the common person above all else. "You and your neighbor" and all that. They cannot say shit to imply that things are alright as they are, or that they'll be better down the line, or that they're going back to the status quo, or any of that shit that makes people go "whatever you're just another flavor of the same shit pile".
Does this person currently exist in the system? Unlikely. Can someone be trained into this position within the next 4-8 years if they start RIGHT NOW? Mildly possible.
But realistically, we're fucked.
Look, I can name a few instances in MY life where I tried to reach mutual understanding
and i can TELL you, always faster and easier to just kill em. Just is!