Sandro Ramirez had an extraordinary season with Malaga, scoring 14 goals in LaLiga.
He had been linked with Atletico Madrid, but their transfer ban has opened the doors for Everton. Sandro Ramirez is seen as an addition to the strikers.
Koeman also wants to sign Ajax player Klaasen. He played against Manchester United in the Champions League final. He also has been linked with Inter Milan and Napoli.