4. Former NXT Champion, Tommaso Ciampa
With Tommaso Ciampa recently losing to newcomer Bron Breakker on January 4th and regularly appearing in main roster dark matches and on WWE Main Event, he is a heavy favorite to debut on either RAW or SmackDown in short order.
Upon debuting, it would be best for Ciampa to return to his heel persona which was highly successful in NXT.
It's very important to build heels who are truly hated by fans and do not receive mixed reactions.
Ciampa has proven that he can not only serve in that capacity, but can also switch to being a babyface when the storyline needs it.
3. Dakota Kai
Similar to the men's division, the women's division is in need of credible heels. To that end, Dakota Kai has been a pleasant surprise.
Spending the early part of her career as the shy, plucky babyface, she pulled off one of the best heel turns in recent history at NXT TakeOver: WarGames in 2019 when she turned on Tegan Nox.
Since then, she has evolved into a solid, upper mid-card heel, helping to bring Raquel González to prominence as her teammate and bodyguard.
As Kai has since turned on González and lost their resulting feud, it's time to bring her to the main roster where she could be an immediate title contender or a feud for other stars.