#1 Kai Havertz (Bayer Leverkusen)

Kai Havertz is a name which might not be as popular as others on this list but the Bayer Leverkusen youngster has already been linked a with a move to the likes of FC Barcelona, Real Madrid, and Bayern Munich.
Havertz is a two-footed player, technically gifted and he has been often compared with Arsenal star Mesut Ozil.
Still only 19 years old, Havertz has shown plenty of promise having made his debut at the age of 17 for Leverkusen. He is a player around whom Arsenal can plan to build their team for years to come. He would also a good long term buy and it should also promote Arsenal's philosophy of giving chance to young talent.
The Gunners have been linked with a move for the German international and regardless if Ozil remains at Arsenal or not, he is a player whom the Gunners should look to sign. The midfielder definitely has something special and is likely to be a world class player in the future.