The most obvious trade for Davante Adams would be to give up a first round pick, although it would likely take a bit more than that. Amari Cooper went for a first round pick, and Adams is looked at as a top three receiver while Cooper is borderline top-ten, and at the time, was not even that.
The DeAndre Hopkins trade will be looked at by a lot of fans as what the Raiders should be able to get Adams for, but that will not be the case. At first, if the Packers listen to trade offers for Adams, they will surely ask for multiple first-round picks, although teams will not offer it, and they will have to revert to Plan B.
The Raiders have not hit with their first-round picks, so it should be a no-brainer to trade a first-round pick and some more for the star receiver. The Raiders weapons would then become Adams, Darren Waller, Henry Ruggs III, John Brown, and Bryan Edwards, along with Josh Jacobs and Kenyan Drake.