the targets all along for Cronin have been two guards, a wing, and a power forward. He has gotten commitments from a guard (Skyy Clark), a wing (Kobe Johnson), and it looks good for another guard (Dominick Harris), and a power forward (Eric Dailey) and is also pursuing another power forward (Tyler Bilodeau).
Also according to BRO, Cronin has also reached out to centers, in case Bona does leave, and have some prospects that they might be in good standing with and possibly could bring in. The list of those prospects is behind BRO's paywall. The BRO guys also speculate that if Bona does indeed leave Cronin could possibly use the considerable NIL money earmarked for Bona to help bring in Bilodeau and then bring in a lesser center.
I'm optimistic that Cronin is going to bring in a bonanza of well balanced talent in this portal period and have his team in pretty good shape going into next season. We'll see if it works out the way the BRO guys are seeing it.