I dont think Barcelona and Real Madrid will be a good place for Kane to play. Competition against other players to take the main position is so hard on both team. He will be only like Pacacer in Barcelona or Morata in Real Madrid which is not good for his career.
I guess you didnt watch Real Madrid matches frequently. I did and I just think that Morata is quite good for Real Madrid. Both him and Asensio would be the second best duet after Ronaldo-Bale, and its not impossible they will be better. Im not sure Kane is suitable for La Liga, he is not very fast and didnt perform so well in latest Tottenham matches. And again, Real Madrid is banned from transfer activity, so there is no chance they will sign new players in upcoming transfer window.
Rumor: Liverpool is after American wonder kid Christian Pulisic of Dortmund. He'll make a good replacement for Coutinho and as a footballer he's still kind of a blank page. He's only 18 years old, so there's still a ton of stuff Klopp can teach him. Please let this be true!
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Nice choice, and I think Liverpool could get him easily since Klopp was Dortmund's coach. But Emre Mor could be good choice too for Liverpool imo.