Wisconsin and Michigan will both need to be contested and recounted, not only because of the late 100K+ ballot drops coming from counties with approximate 60% Biden / 40% Trump distributions that went 100% to Biden, but also especially for Wisconsin because of it’s record 87% turnout (higher in some counties), when the average for all states in this election was 68.3%, and when the turnout for other swing states in this election ranged between 66% (GA) and 78% (NH).
I would also contest and recount Minnesota for similar reasons as Wisconsin, but they were more sophisticated (more experienced?) about making it not obvious, so I’d lose that contest.