Boston is automatically out because they'd have to trade Kyrie if they want AD now (Rose Rule) so that makes no sense for them.
Knicks have assets too but realistically there's not much they can do. KP/AD would tie up their cap room and they won't be able to build a contending team. If they trade KP they'd be banking on landing KD/Kyrie/Kawhi in the summer.
Evaluating the options then, the Pels have to consider whether they want to rebuild or keep a solid team like the Clippers. If they want a complete rebuild, the only 2 teams that can offer good rebuild packages (they'd also be dealing Jrue somewhere else):
12 mil in cap relief and 3 of Ball/Ingram/Kuzma/Hart/Zubac/1st rd pick is hands down the best rebuild package they can get
+ Sixers throw in a 1st rd pick
12 mil in cap relief + Fultz + a rookie 1st-rounder in Zhaire + a 1st rd pick isn't bad but Lakers can easily beat that out. Which is why Sixers might have to go this route:
+ Sixers throw in a 1st rounder. This gives Pels a star player and a lot of cap flexibility as well as solid young pieces (sophomore no. 1 pick and a rookie 1st-rounder)
Raps can also offer
+ Raps 1st-round pick, but Lakers can easily beat that if they wanted to
Bucks, Houston, OKC, and Spurs would then all be offering pieces that keeps the Pels afloat with Jrue in the picture