Van Den Beek doesn't look very impressive to me. Grealish is technically more gifted isn't he?Donny Van De Beek, Zakaria, Kai Havartz, or Dani Olmo would improve us. You really think Jack Grealish would help us win titles again or even make us a consistent top four side? Liverpool and not even Chelsea or Tottenham would sign this guy.
Zakaria isn't even an attacking midfielder.
I'm not sure Grealish is perfect for us or ready to be a top player but I do like him and he seems better than some players you seem to be listing on account of "not being English".