Based on FiveThirtyEight, they have Notre Dame being left out. They have a top 4 of:
1. Alabama
2. Clemson
3. Oklahoma
4. Ohio State
There model uses the College Football Playoff selection committee’s past behavior and an Elo rating-based system to anticipate how the committee will rank teams and ultimately choose playoff contestants, accounting for factors that include record, strength of schedule, conference championships won and head-to-head results. It also uses ESPN’s Football Power Index and the committee’s rankings to forecast teams’ chances of winning.
https://projects.fivethirtyeight.com/2018-college-football-predictions/
1. Alabama
2. Clemson
3. Oklahoma
4. Ohio State
There model uses the College Football Playoff selection committee’s past behavior and an Elo rating-based system to anticipate how the committee will rank teams and ultimately choose playoff contestants, accounting for factors that include record, strength of schedule, conference championships won and head-to-head results. It also uses ESPN’s Football Power Index and the committee’s rankings to forecast teams’ chances of winning.
https://projects.fivethirtyeight.com/2018-college-football-predictions/