Sekou Doumbouya will be 18 until December. He is already 6'9'' with a reported 6'11'' wingspan. He is also 210 pounds of muscle with a good frame to fill out to 230-240 pounds.
He has long strides and really good athleticism (not elite bounciness, but overall really good).
He's projected to go 10-15. Depending on how his measurements end up, how his season ends up, and private workouts, he is the kind of high upside guy I could see as a good fit.
In that case, combining the picks to move up to 8-10 might be a way it plays out.