I seriously would take Mo Bamba second behind Deandre Ayton.
His wingspan + fluidity for a big man are just ridiculus, furthermore he is a very smart defender and can defend every position. I know his offense is a work in progress, but his jumper looks smooth so I'm optimistic.
If he puts it all together he could be perennial DPOY who can space the floor and finishes in the paint.
He could become the next Rudy Gobert, Dikembe Mutumbo, Manute Bol or dare I say Bill Russel?