There are many other great players and even better than Harry Kane who never won the champions league winning the Champions League title can't be the reason for a player to leave his team. But what's different about Kane he is a player who had no chance on Tottenham and even after the hard work, he had there in his team but he couldn't get what he wanted to get there.
Also considering his age I think Kane doesn't have too much time to choose another team because next season he won't have the offers he has right now.
I didn’t follow the news on Kane, does he really have any real chances to move to another team now, who is seriously interested in him now? He spent so much time at Tottenham that I can't imagine him in another team.
I read today that Al-Hilal is interested in Neymar, it all looks like rumors again with very big money, according to rumors, the offer may even exceed Rogaldo's salary. Neymar was not the most important player at PSG, but maybe things will change after Messi leaves and they won't want to let him go.