I think there would be no team in the league right now who will accept Westbrook if in case the Lakers will choose to trade him. I guess it's just too late.
There will always be a team that will sign Russell Westbrook but not the same as what the Lakers offered him.
It's a good catch if teams can get him at a fair price.
During the off-season, there are lots of trade packages offered from other teams that the Lakers received for Westbrook but none of those satisfy them because as reported, part of the Westbrook deal should also include some of the future first-round picks of the Lakers which seems a bad idea to risks with.
Therefore, instead of pushing trading Westbrook, they keep the current roster intact for this season and that's what we are seeing right now. As I said before, trading Westbrook depends on how the team will behave this season. I'm thinking that the decision of trading Westbrook will be finalized after seeing their progress in the mid-half of the season.
If I'm Rob Pelinka, I'd rather just stick to their current roster right now than pushing West-brick to get traded. After all, he will be an Unrestricted Free Agent after this season, so he is free to sign with any team, but expect his value to be way lesser than he was because of how he played is playing with the Lakers.
Like you said, there will always be teams that will sign Russ, but right now there aren't because his current contract compared to his performance isn't equal. He is being overpaid and you aren't expecting him to play like he was few years ago. He isn't helpful at the Lakers as well.
He will be UFA next season so there will be teams that will get him. The only question is how much? If he does not make some developments this season, his value will decline significantly.