There isn't a sane person on the list but certainly, by far, the most frightening name is Alexandria Ocasio-Cortez.

Politico notes:

 No other potential candidate would dominate the conversation as much as Ocasio-Cortez. If she were to enter the race, it's guaranteed that she will receive more airtime and national small-donor support than every other candidate combined. Her supporters would likely put more energy and volunteer more time into her candidacy than has ever before been put into a gubernatorial campaign.