Idk, it is so heavily dependent on who's available for what package to give a good answer.
If the Brooklyn pick looks like a more or less guaranteed top 5 pick, I'd only move it for a very short list of guys, and it would involve a package around that pick. Besides Durant/LeBron/Davis if consider moving it for...
DeMarcus Cousins
Westbrook
Paul George
James Harden
Curry
I'd think about it for guys like Kawhi, John Wall, etc.
If your talking about a draft night trade though, if it's #1 or #5 matters. If you trade at the deadline, you run the risk of it landing at 1, just like the other team runs a risk of it landing at 8 or 9.