#4 Finn Balor could get a rematch against Roman Reigns
Finn Balor already has some unfinished business with Roman Reigns. The Irish star tapped into the Demon and pushed Reigns to the brink in the main event of Extreme Rules. Despite the best efforts of The Bloodline, Balor found himself on the cusp of winning the Universal Championship.
However, he was foiled by a faulty top rope that snapped and allowed Reigns to steal an unlikely victory. Balor is a very popular Superstar, and the audience would buy into his quest for vengeance. He puts on a spectacle every time he wrestles as The Demon and is more than capable of beating Reigns.
#3 Seth Rollins could use a reset
Seth Rollins and Roman Reigns will always be tied together because of their history with The Shield. Rollins lost his way after feuding with The Fiend in 2019 and eventually became an outlandish heel. While this character can occasionally be entertaining, it isn't one that works for a main eventer.
Rollins' loss to Edge at Crown Jewel could potentially serve as an opportunity for him to hit rock bottom and come back as a babyface. A redemption arc for Rollins would be a compelling storyline, and it could eventually lead to a big-money match with his former ally Roman Reigns.