I think Reed Jr. and Stew cover Dixon. Samson and Singare cover Boakye. Samson will be a foul machine against Dixon.
There is no great answer for UConn on who should guard Eric Dixon, but I would rule out Reed Jr. It would not be beneficial for Tarris to be out on the perimeter where the 3 pt lines is and further and that is exactly where Dixon would bring him. It would be better for Tarris to defend
Enoch Boakye who's shooting range is limited to dunks and 3 ft shots. That way Tarris can stay near the basket more and help out other UConn defenders.
Who should defend Eric Dixon then? I would say Karaban because he can guard the perimeter better. But if Dixon tries to bully Karaban in the post, which he surely can and will be successful doing, Reed Jr or Samson have to help. Again, there is no great answer for UConn.