Right now it's basically Alabama and everyone else. The rest of the ballot is just trying to find some order to the 30 remaining undefeated teams. Teams like Notre Dame and Standford got big boost thanks to wins over ranked foes. And teams like USC and Michigan State were eliminated for losing.
I don't feel super confident with teams like Northwestern and Iowa State on my ballot right now, but they are undefeated and have decent enough resumes. Probably starting next week there will be fewer than 25 undefeated teams, so the 1-lossers will start to creep back in.