This year is decidedly weird for the Cubs. This draft's strength is with HS shortstops, which is a demographic the Cubs tend to avoid in early rounds (Ed Howard not withstanding, but 2020 was, well, 2020), and the Cubs are picking at 17, so the guys who fall into their usual bread and butter might be seen as unsexy picks or even overslots (RHPs Patrick Forbes and Riley Quick come to mind).
Come Saturday, we should have a better grip on how the chips are going to fall. Right now the top of the draft is still getting sorted out, with three unpredictable teams picking in the Top 5, featuring the Nationals due to the Rizzo firing, and the Angels and Rockies being, well, the Angels and Rockies, so it's hard to get a read on who might actually be available at 17 at this point.