Las Vegas
Las Vegas, like a few other cities on this list, would help alleviate some of the alignment confusion among the MLB divisions (See: Houston, AL West). Of course, Vegas is a growing sports town too, with the NHL already doing well and the Oakland Raiders getting ready to move there in the new decade. Vegas also holds one built-in element that other cities do not have: A continuous flow of money-spending consumers, looking for a hot ticket while they are in town.
The market reach is somewhat concerning, though—two spots below Cincinnati at 39—and the current field situation presents a problem: Does the city somehow add on to the Triple-A park (currently part of the Oakland A’s system) that was just built in 2018? Or do they turn a blind eye to the money spent there and go with the “Hey, the house always wins!” slap. Regardless, I think an MLB park would need a roof to be successful, attendance-wise.
Odds: 7 out of 10