There's not really a white whale out there that a) checks all the boxes and b) would consider us. I think right now we're better off putting the ball in Baker and McConnell's hands and getting them more experience, rather than bringing in anybody who's available.
He's not a PG but I'd love to see us get involved with former UMass C Malik Hines. Haven't seen any list of schools interested but I imagine he'll draw a lot of interest from high majors.
Other than that... I think we either roll the scholarship over to 2019 outright, or bring in a grad transfer reserve player, although grad transfers generally don't transfer to be a reserve player.