Aside from Melo, I came up with a short list of players that fit in the DPE and can be had for a 2nd: Stanley Johnson, Sterling Brown, Bates-Diop, and Semi Ojeleye.
I’d sign one of them, have faith that we can fill in with one of them and one of the other players on the roster (CABOCLO!), while DG can comeback in the quicker of the 6-12 month recovery timeframe.
As a last resort and bypassing the DPE, what is Payton’s trade value? Packaged with Kornet, Hauser, and Brodric as needed for matching salary, I think players like Bazley, Vanderbilt, Kispert, Reddish, Toppin, PJ Washington, Jalen Smith, Avdija, Hachimura, Gay, and Patrick Williams would be available.