Totally agree. And that won't be easy. I think right now, based on the current rosters, only the Celtics would be favorites to beat the Warriors with Lebron added.
Houston is fools gold, he'd be an idiot to go there. The Rockets would have to strip the team to get Lebron and then be dependent on the forever injured CPIII. It's a mortal lock that CPIII will end up watching most of the Warriors series from the bench with some random injury, while Harden misses three pointers and competes with Lebron to be the alpha. Plus, the city sucks. Lebron's family would probably die in a flood if he goes there.
IMO the Spurs would need both Kawhi and Lebron to be competitive, and it seems like they might not keep him. But some part of me would love to see what Pops could do with both of them healthy.
LA if they get PGIII *and* Kawhi (seems very doubtful), or the Sixers if they get Kawhi could also do it. But just adding Lebron to the current rosters of both those teams might not be enough.