#3 Mickie James

Becky Lynch is the current Smackdown Live Women's Champion, while Mickie James is a former Women's champion who is working as an ally to Alexa Bliss. Her current association is working as a heel, but we all know that the same will change in due course of time.
Survivor Series happens in 9 days from now, and if the company plans on making some wrestlers switch brands, they could start by making Mickie James turn on her team captain and then move to Smackdown Live. She can then get into a feud with Becky Lynch, as Becky Lynch would be a heel and Mickie James would be a babyface. The same can also be done if Becky Lynch may switch brands down the line.
The match between them would be a performance that the fans will cherish, and the company can talk about as they make some groundbreaking decisions in the women's division.