#2 Rhea Ripley

Rhea Ripley debuted in the first ever Mae Young Classic and followed it up a year later with another tremendous performance, and her improvement in this time can't be understated.
Going from a fresh-faced youngster looking to have fun to The Nightmare we see today, Ripley has improved in leaps and bounds, and given that she's still in her early 20s, the sky is the limit for her.
Ripley has gone on to win the NXT UK Women's Championship, but with Toni Storm being the future of that division, Ripley should be moving on to conquer NXT proper. Rhea still has room for improvement in the work-rate department, but she sticks to her character perfectly and is one of the few women in NXT who can stand up to Shayna physically.
If Baszler is to stay down in NXT beyond SummerSlam, this is a very big possibility, as the WWE clearly has big plans for the young Aussie, and it wouldn't surprise anyone to see her take out The Queen of Spades.