Ok, "nother lurker" has introduced another fantastic petition to directly petition the electors to change their vote. I think this will simply complement the Popular Vote Plan effort using a differing approach.
Also, see BPinWA's comment, below, introducing a third candidate, a Republican, into the mix to try and knock Trump's count below 270 and get someone else, anyone else, in.
Is there someone above my paygrade, our paygrades, that can take these ideas to the next level? I don't know what the best approach is. At this point we need to be furiously looking for ways forward, at every step of the long tortured road that lies before us.