Boston has the remainder of the Fournier TPE of 17,142,857 which expires July 17th. They also have the Hernangomez (6,907,815) and Schroder (5,890,000) which don't expire until early 2023. So those do give Boston some trading options.
Optimally, we'd be able get someone like Christian Wood whose contract would fit into the Fournier exception. Perhaps Houston would be interested in our 2023 21st round pick and Nesmith, Pritchard, or Grant (if I had to). I think Wood would fit perfectly in the big guy rotation with Robert, Al, and Daniel as I think he could play with all 3 of those guys.