It also sounds like Maxx Crosby has indeed said he will no longer play for the Raiders. So obviously initial reactions would be that every team will want him, but Crosby really is a hand-in-the-ground traditional 4-3 DE. I don't think he'd work as a more modern edge rusher and I he's not really big enough to be an DE in a 3-4. I'm pretty sure former Raiders DC Patrick Graham even confirmed as much when he was hired by Pittsburgh. Folks were asking if Pittsburgh would go to Graham's 4-3 defense he ran in Vegas, and Graham said that wasn't his defensive style, but he stuck with that system solely to benefit Crosby.
With that said, I think this might be bad for the Vikings, because looking at team defenses, I *think* with the 49er's switching to a 3-4 next year, only three NFC teams that still run a traditional 4-3/4-2 defense two of which are the Lions and Packers. Usually when legacy players get traded, the trading team tries to get the player out of the conference. The Cowboys are the other NFC team, but they JUST traded Parsons, so trading FOR Crosby would all but force Jerry Jones to admit he made a mistake, and Jerry Jones will never admit that.
Even if they are willing to trade in the AFC, there aren't a ton of other options to make Crosby fit. Buffalo is switching to a 3-4 from the sounds of it. Miami is likely switching TO a 4-3, but they look to be a big time tank job this year. Tennessee should be switching with Robert Salah there, but they don't seem to be in a competitive position to make this kind of move. Same with the Jets. Houston already has a pair of awesome DEs, as does Jacksonville but to a lesser degree. Cincinnati probably wouldn't willingly pay his contract. Zero chance the Raiders would EVER trade him to Kansas City.
Maybe a trade to Indianapolis wouldn't be all that offensive to the Raiders? They could for sure use Crosby and he'd fit. If not, it would be awful if he ended up paired with Hutchinson in Detroit or Parsons in GB.