Who has space for Oubre?

With recent news, a lot of the teams Oubre was looking at (Knicks and Bulls) have filled up their cap. Spurs are also making moves, and while they have space right now, I believe they need to renounce rights and seem to be filling up quickly. What other teams would have the ability to sign oubre outright for the amount he wants (15 million +). If none it would be great for FO to try and snag a sign and trade (assuming both parties agree).

Tax implications would be tough but if the market dries up, he may not have much of a choice