Charlotte Flair
Charlotte Flair is the single most decorated women of the modern era of WWE, and one of the most decorated women of all time.
Her accomplishments are numerous. 7-time women's champion. NXT women's champion. First ever women's falls count anywhere match. First ever women's Hell in a Cell match. Two pay-per-view main-events, the only woman to do so. Part of two rivalries; versus Becky Lynch, and Sasha Banks, that could be considered legitimately great. First ever main roster last woman standing match. Three high-profile WrestleMania championship matches. I could go on. And on. And on.
As such, it would be the most natural thing in the world for Charlotte Flair to add Royal Rumble winner to her list of accomplishments.
Who would she face?
She could rematch with Asuka; their WrestleMania match earlier this year was excellent.
Or, she could face 'Rowdy' Ronda Rousey.
It doesn't really matter, both are likely to be excellent.