He slots in behind Kolten Wong (Cardinals), Rougned Odor (Rangers), Mookie Betts (Red Sox), Arismendy Alcantara (Cubs), Devon Travis (Tigers), Jonathan Schoop (Orioles), Taylor Lindsey (Angels), Eddie Rosario (Twins) and Micah Johnson (White Sox). I've seen four of those guys play live.
Here's the comment on Flores:
Flores has a knack for putting his bat on the ball and has begun to realize his power potential. Though he played almost exclusively at third base during his brief time in New York, he profiles best at second base and is nearly ready for a full-time spot in the big leagues.Italics mine.
The question remains whether he has the foot speed and agility to play second. I am far from sold on this point. He's quite likely to outhit many of the players in front of him on the list, but he also has to prove that he can play second base.