Michigan controls their own destiny. If they win out, they’re in. No other team still has Ohio St remaining on their schedule and a win against the #1 team in the country would give them the best resume of the bunch.
Iowa, Minnesota, USC, and Washington still play Oregon. Assuming Oregon is a playoff team, if any of those four 4 go 10-2, they would have a really good chance to make it in with that strong of a win.
No team on the list still has Indiana in front of them.
Looking at that, though, Oregon has a sneaky difficult remaining schedule. They play Wisconsin and then 4 teams who are all currently 5-2 with two of those games coming on the road (@Iowa and @Washington). Could Oregon potentially miss the playoffs?