There are multiple teams interested in trading for him according to Chris Broussard:
Celtics: Evan Turner can start at shooting guard and play backup point guard. Jackson would be the first scoring option in Boston, for the moment.
Evan Turner and Jae Crowder for Jackson and Jeremy Lamb
Rockets: Houston gets a scorer in Jackson who will be the third option and OKC gets a backup PG and solid, athletic PF
Pat Beverly and Terrence Jones for Jackson
Pacers: Here Jackson will be the top or second option until PG13 returns and OKC gets essentially what Jackson was in Stuckey and Solomon Hill who is a capable scorer.
Rodney Stuckey and Solomon Hill for Jackson
Nuggets and Kings: Confused why Denver has interest unless they are trying to trade Lawson but OKC doesn't need a top PG so this is a three team trade that also reunites Karl with Lawson.
OKC: Ben Mclemore and Jason Thompson
DEN: Reggie Jackson and Kendrick Perkins
SAC: Ty Lawson