#5 Gallows & Anderson

Luke Gallows and Karl Anderson truly made a name for themselves in pro wrestling during their run in NJPW when they were part of the Bullet Club, alongside AJ Styles, and The Young Bucks.
The Bucks and Gallows & Anderson shared a close bond during their NJPW run, winning several championships. When Gallows & Anderson signed with the WWE in 2016 along with AJ Styles, many expected them to go on and dominate the tag team division, which has sadly not happened.
Yes, they did win the Raw Tag Team Championships but their reign ended at WrestleMania when they were defeated by the returning Hardy Boyz. The duo are currently on SmackDown but don't seem to have any interesting storylines in the near future, which could prompt them to switch to AEW.
Gallows & Anderson could build a strong tag division at AEW and show WWE what they missed out on.
Becky Lynch has been challenged HERE.