@BlueToff mentioned yesterday he was talking with a journo who works closely with Ajax and they didn't want to sell any of the squad etc - with the possible exception of Klassen - and for them to consider Dolberg etc would take a 40m type of offer - how realistic or informed that guy actually is though (the one he spoke to) i have no idea.
The only comments i have seen recently is the agent denying any contact whatsoever from Italian clubs (note he specifically was answering rumours about Milan i believe) but telling he didn't say 'any club' and markedly stated Italian specifically. and the player himself saying he wasn't ready for the likes of United and City yet as he need more experience and to be playing regularly for his next level of development.
So i am guesisng they know there is interest and they are trying to see what teams will make contact before deciding themselves.