Pacers are going to be interesting as they have a pretty full roster at the moment, so they're either going to need to make a somewhat expensive signing or they'll need to organize a trade with mismatched salary.
Personally I think they'd prefer a trade with a salary that doesn't last too long (no more than 2 years) as Haliburtion will get his rookie contract max starting next year so they'd want some salary now but not for too long. That would make Tobias Harris kinda perfect for them, but it sounds like the price for him is insane given the pacers would take on salary in aquiring him.