IF....you were able to parlay players/picks into the the #6 to get to #12 and #13, it would have to involved CJ. If he was gone, PG/SG 6'6" Shai Gilgeous-Alexander (one of the better names in the Draft) might be a good choice. He has a 7' wingspan to go with a 36" vertical all while being able to play some PG. That would team nicely with Dame. He needs to put on some weight/strength as do most 19 year olds coming into the NBA.
If I could somehow pull SGA and Mikel Bridges (ridiculous 3-pt shooter with hops who I don't think falls that far) with the 12/13, that would go a long way to providing some skills at the 2/3 position and also balance out the roster a bit better in the long run.