Given his contract, the other teams needs, age, and injury history Kemba can ONLY (realistically) be traded to:
1) Dallas for Porzingis (problem for a problem trade but both teams need a better starter at that position)
2) Cleveland for Love (problem or an older problem trade. Cavs young'ins get leadership, Celtics get rebounding)
3) New Orleans for Adams (only makes sense if Lonzo leaves in free agency, Pelicans may want a 2nd round pick too)
4) Minnesota for Russell (only works if Towns is okay with it/ Kemba could help develop Edwards and Minnesota doesnt get a top 3 pick in this lottery)
5) OKC for Horford (only makes sense if they dont pick up a guard in this draft, OKC would want a 2nd round pick too)
6) Clippers for Rondo/Beverley/Zubac (Clippers would want a 1st round pick too. Clippers get someone who can get his own shot, facilitate and a pic to replace one of the ones they lost for PG, Celtics gets rentals that can help win now and cap space in 2 years instead of 4)