The logical pick would be Simmons for Rozier and a decent pick (late 1st/early 2nd)...
A slightly upgrade on size, scoring and playmaking, without losing any defense. With his cheap salary for the next 3 years, he is an absolute bargain asset that won't come cheap.
Orlando gets a year and a half of Rozier before making a decision on him in RFA in 2019. Add in a decent pick and they extend their asset collection.
Use the DPE on a big after the buyout market.