Apparently they may not trade him due to the 11 million cap hit they'd take, and it's hard to find a team that'll take in $14 million in a cap number. (And one of the main reasons he's so pissed was because he wants his 1 mil offseason roster bonus which Houston won't pay him, and he's restructured his contract 3 times for the Texans but isn't getting the same respect in return. What's with teams pissing off their star players nowadays?)
According to Spotrac, the teams with the most cap room right now are Jaguars, Browns, Jets, Bengals, Titans, Eagles, Colts, Steelers, Dolphins can all afford to bring him in under the cap.
Of this group, I absolutely see him being an Eagle on paper (if he leaves Houston) but wonder if Chip's still like "Nah we don't need a #1 receiver it's better to open up all the cap room we won't do anything with, cut Desean"