#2 Braun Strowman
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These are 2 of WWE's best big men, therefore, if Lars Sullivan ended up on the land of the brand of big men which is obviously Raw as they have several big men including Bobby Lashley, Drew McIntyre, Baron Corbin, WWE Universal champion Brock Lesnar, and the aforementioned Braun Strowman.
Strowman has faced big men like Brock Lesnar, Kane, Big Show, Mark Henry, and he is soon going to face Baron Corbin.
Sullivan also has some experience facing other men like Keith Lee and Killian Dain. While this match probably should not be a long, drawn-out match if the two superstars are given 10 to 15 minutes of ring time, they would do fine.
This feud can work well because it can be based on Braun Strowman saying that if Lars Sullivan wants to be seen as the monster, he has to beat the monster first.
Major rumor about recently released stars HERE