The most likely path at this point is the National Popular Vote Interstate Compact, a collection of state legislative measures, state constitutional amendments, etc. aimed at using the electoral college against itself. The very short tldr is once >=270 electoral votes worth of states have passed something enacting it, all those states’ delegates will vote in line with the national popular vote regardless of how their individual state votes, forcing the popular vote winner to be president.
Whether or not it’ll survive judicial challenge if/when it gets to >=270 electoral votes worth of states is entirely unclear. In theory, there’s nothing they should be able to do about it, but SCOTUS has shown time and time again it doesn’t actually give a fuck about the constitution.
I should have clarified. I mean silly (fun) not silly (ridiculous)