He won't go to Portland, but they are the most logical place for him. A CJ and for Simmons trade makes a lot of sense.
Here is a crazy 3 team trade idea.
76ers get: CJ and Covington
Portland gets: Simmons and Markkanen (S&T from Chi 4 for 60-80 mil)
Bulls get: Seth Curry, Doug Jones and a 1st rnd pick from Portland.
76ers lineup of CJ, Green, Harris, Covington, Embiid.
Portland: Lillard, Powell, Simmons, Markkanen, Nurkic.
Chicago: gets to move on from Markkanen for 2 solid role players for depth and a 1st round pick.
As long as Chicago is on the fence about a 15 mol a year plus deal for Markkanen they could do a lot worse than Seth and a 1st for him in a S&T.
76ers would be getting the spacing they need with CJ while replacing some of Bens D with Covington. Blazers get a improved D with Simmons allowing Powell to play his more natural position of 2 guard and they maintain outside shooting/spacing with Lillard/Powell/Markkanen around Ben and Nurkic.