You have to think there arent many options out there. As much as people think going to Man Utd is a possibility, I really can't see it happening now. Maybe if Neymar goes the other way to Madrid, he'd go to PSG? I really can't see what other rich club would stump up the cash. And I'm not sure PSG would be interested either. Doubt Bayern would do it either, they have been making a concerted effort to get younger the last 2 seasons windows.
I think in a window where potentially Griezmann / Coutinho or Dembele / possibly Sane / Hazard / Brandt are up for grabs, it's hard to see where he goes permanently. Even someone like Pogba leaving could make it more difficult for him.
If Chelsea lose Hazard and have their ban lifted, then someone like Coutinho or Dembele would be perfect there. Brandt/Sane seem like the type of signings Bayern need, to replace Robben and/or Ribery and Griezmann to Barcelona looks nailed on. Pogba potentially back to Juventus looks like it could close the door for Bale going there - and you could argue someone like Coutinho would be a better choice for them.
Maybe PSG. Or if United could get him on loan then it could be an option. I think United are a bit more wise now, given the burns they have faced - OGS seems like he has identified their points of weakness and the type of players they don't need to be signing. It's whether or not he has a say in that. As you could imagine him appealing to Woodward and co.