Most recent mock drafts from a number of industry experts. I'm thinking that at least a couple of these will likely be updated prior to the draft.
Jim Callis (MLB):
Colt Emerson, SS/3B, Glenn HS, New Concord, Ohio
Houck, Emerson, third baseman Aidan Miller or Peete would give the Red Sox a prep infielder in the Draft for the fourth straight year. Mitchell could be appealing as well.
Jonathan Mayo (MLB):
Matt Shaw, SS, Maryland
After seeing past first-rounders Marcelo Mayer and Nick Yorke play in the Futures Game together, it was tempting to go with another high school hitter here, someone like Miller. But it did sound like they were leaning toward college guys, with Shaw edging out names such as Enrique Bradfield Jr. and Chase Davis.
Keith Law (The Athletic):
Colt Emerson, SS, John Glenn High (New Concord, Ohio)
Yes, another infielder for the Red Sox, although I don’t think you can have too many good infield prospects, ever. Emerson’s one of the younger players in the draft class and there are at least some scouts who think he’s one of the better pure hitters. I’m only hearing them with hitters, including college guys Shaw, Brock Wilken and Chase Davis; and high schoolers with Bryce Eldridge – who supposedly wants to go to a team that will also let him pitch – Houck and Mitchell as other possibilities.
Kiley McDaniel (ESPN):
Matt Shaw, 2B, Maryland
I'll keep Shaw here as the Red Sox are mostly tied to safer position-player types at this pick with bolder choices coming down the board. One of the wildest rumors I've heard all spring is that Arizona State 2B Luke Keaschall could be a Nick Yorke-esque pick here. I buy that Boston likes him, is worried he won't get to their next pick, and is thinking about it, but it's just a little too farfetched to project right now. I've given Keaschall to them in the second round.
Eric Longenhagen (Fangraphs):
Blake Mitchell, C, Sinton HS (TX)
I’m getting mixed signals on the BoSox, who have been mentioned with Mitchell and also as a team looking to cut a deal. It sounds like Stanford’s Tommy Troy is behind a bunch of the other college hitters on teams’ boards, so he might present the greatest savings here if that’s what Boston wants to do.