Coventry or Ipswich I suspect.
He can do better than that, but whatever he does good luck to him.
Leipzig wanted him last year. They'll lose at least one of Nusa and Diomande this summer, so chucking £25m at Liverpool for Harvey as a replacement would probably suit everybody involved. Particularly given Liverpool have been mentioned as a probable destination for the above two.
Based on what we've seen of the Bundesliga and the space they're happy to leave attacking midfielders I imagine he'd have a lovely time there.