Kane has managed 32 goals in 45 matches for the Three Lions since making his senior international debut in 2015.
"He is the best striker, or number nine, in football right now," Villa said.
"He is great in almost everything he does, he is one of the candidates for taking the golden boot at Euro 2020 for sure."
He added: "You don't need to move to another club to motivate yourself. Harry has always played for Tottenham.
"I know they are not doing so well this year but I'm not in his mind, I don't know his future.
"He will be a good player wherever he goes for sure, he has talent to play in other leagues."