#2 Aleister Black

Aleister Black is definitely one of the top prospects of the SmackDown Live roster. With an intimidating dark persona, the Dutch Destroyer is a fan favorite. Black could be a great choice to challenge Nakamura for the Intercontinental Championship, and the two Superstars are competent enough of delivering an entertaining feud.
After getting drafted to SmackDown Live, Black had only one noteworthy rivalry. The former NXT Champion began a feud with Cesaro, and they fought each other a few times, including at Extreme Rules.
If they get the opportunity to face each other, they could tear the house down every single time. Black is still undefeated after getting drafted to the main roster earlier this year, and he has the momentum to win his first title.
#1 The Miz

The Miz has a bright possibility of tussling Nakamura again after losing to the latter at Clash of Champions. The A-Lister certainly deserves a rematch, as Sami Zayn influenced the outcome of the last match. Zayn interfered the match multiple times, helping Nakamura to pin The Miz.
The feud began after SummerSlam when The Miz was assaulted by Nakamura and Sami Zayn. Since the A-Lister failed to progress in the King of the Ring tournament, the match was confirmed with the Intercontinental Title on the line.
The Miz could get another opportunity to win the Intercontinental Championship for the ninth time in his career. However, Nakamura and Zayn have been dominant as a team, and The Miz needs new impetus if he wants to look like a serious contender to beat the champion. In order to beat the numbers game of Nakamura and Zayn, The Miz could bring in a new partner of his own.