#3 Bobby Roode
Bobby Roode signed to WWE in 2016 and began his career in WWE NXT and was a one-time NXT Champion prior to his main roster call-up. Roode debuted on SmackDown in August 2017 and was quickly in the main event scene, joining Team SmackDown at that year's Survivor Series and entering feuds for the United States championship, eventually winning the title in January 2018, his first championship on the main roster.
But then he lost the title to Randy Orton at Fastlane. Then was drafted to raw after WrestleMania. He had some good matches but then he never got into title picture again. Now he is performing in a tag team with Chad Gable.
He is a great performer and should be used well. He is a good singles competitor and I think WWE should push him as a singles competitor. He is a main event Supersta and he should become a champion in future.