#2. Former WWE NXT Champion Bo Dallas
Bo Dallas signed with WWE in 2008, experiencing various ups and downs since. During his time in NXT, Dallas had a successful reign as NXT Champion, before he made his debut on RAW. During his time on the main roster, Dallas aligned with The Miz, becoming a member of The Miztourage with Curtis Axel. The pair later turned on their leader.
Dallas and Axel became a tag team known as the B-Team. The duo had won the WWE RAW Tag Team Championship at Extreme Rules 2018 and managed to defend the titles against Breezango, The Deleters of Worlds, and The Revival.
In 2019, Bo Dallas became one of many WWE 24/7 champions. A few months later, the team effectively split up as WWE released Axel in April. Dallas hasn't been since on WWE programming for quite a while now. It could be a great opportunity for WWE to repackage him as a big star, as either a singles or tag team wrestler.