Maybe Doncic?
A lot of this depends on the timeline of the rosters as currently constructed. In a vacuum the Warriors would probably trade Curry for Wembanyama simply because of the limited number of elite seasons Steph has left. But there's no way they'd take Steph off of a ready made championship roster in order to incorporate a 19 year old rookie. The same could potentially be said for Tatum & Embiid.