If you're one of the owners who believes that players can be unlucky and have their actual performance not be fully reflective of what should happen, then you'll want Christian Walker. Using Statcast and other lucky/unlucky information, Walker is one of the unluckiest players in baseball this year. The difference between his actual batting average and slugging percentage and what Statcast data would suggest is one of the biggest differences in baseball this year.
https://baseballsavant.mlb.com/leade...10&sortDir=asc
He's actually come closer to his "true" level in the past couple weeks, but he's still a ways away. He should be batting closer to 272 and slugging almost 600. Conversely, Lowe is doing what he should, and Rojas has been one of the luckiest batters this year.
This does not guarantee future success, but given the strong indicators that Walker should have a positive regression coming, he'd be my pick.