I like a rotation of:
Graham, Jones, Wesley
Vassell, Branham, Champangie
Johnson, Osman, McDermott
Wembanyama, Sochan, Cissoko
Collins, Bassey, Mamukelashvili
With Rice, Barlow and Bediako as the two-way guys.
I think Graham gives the Spurs some dynamism when it comes to scoring without dominating the ball, but he can bring the ball up the floor, which is apparently all being a PG means to some folks. Sochan playing off the bench makes sense, but if you're worried about him and Jones, Jeremy can switch with Keldon. Then Sochan can "play PG" while Graham takes an off-ball role.
I don't love Collins as a starter based on the limited tape. I think he might work best as Victor's backup with a more energetic center as the starter. Collins seems to do his best work as the main inside presence, and a team with a 7-4 star will never cede that to him. I don't love Bassey as the starter, but his energy might set a better tone than Collins' willingness to get into scrapes.
McDermott is probably a safer bet over Osman, but I think Cedi might add some all around stability to that young bench unit than the more specialized McD wouldn't.