Here the Mavs give up their draft picks and a couple guards to grab 3 players who would be huge helps in the front court. Allen and Hunter are both younger guys who lineup with Luka's timeline nicely, and while Olynyk is older he can still play well. All of a sudden the Mavs would have size, rebounding, some shooting, and toughness up front, things that really help compliment their stars in Kyrie and Luka. Dallas would need to bring in another wing or two in FA (I like Jalen McDaniels and Yuta Watanabe, but there are some other good options for the TPMLE). They could go Luka/Kyrie/Hunter/Olynyk/Allen or Luka/Kyrie/Green/Hunter/Allen depending on matchup.
The Jazz would get to move up in a very strong draft to add another high end young talent to their roster they are building or could package with 9 to move up further.
The Cavs would get spacing from Wood and a nice 3-D player they were missing all year in Bullock who can slot in at the 3, while allowing Mobley to move to the 5 and helping to open up the court around their stars. They also get a future asset to help continue building out the roster.
The Hawks get a big upgrade when it comes to shooting and two more shots in the draft to add more young talent or move to get another guy, and they have a guy in Griffin who can step in and absorb some of the minutes as well.