Some interesting petitions are being created and posted online. There is one at popefrancispetition.com
The petition does not ask for Francis to resign. However, those of you who strongly favor his resignation should still at least have a look at the petition. In essence the petition assumes the best of Francis and, in that spirit, calls upon him to initiate a full investigation into the allegations made in The Viganò Testimony (which would call on Francis to investigate himself).
At this point, some 4000 people have signed. It will be sent to Francis through the office of the papal nuncio to these USA.