Song, currently on loan from FC Barcelona, is with the Hammers for the season and the Premier League side are keen on making his move permanent.
However, AC Milan and Inter Milan are also interested in the Cameroon international, with Inter looking to Song as a potential backup option, should their pursuit of Yaya Toure fall short.
Song is favourite to join AC Milan in the summer, according to the Daily Mail, as De Jong looks set to leave on a free after rejecting a new contract and is wanted by Manchester United.
Song, who joined Barcelona in the summer of 2012 for a reported fee of £15 million, has played 27 times for West Ham in the Premier League this season and has been a great asset to the side this campaign.
West Ham’s recent form has seen them drop out of the race for European football but they can still see their season as successful and signing Song on a permanent basis would also be huge for the East London club.
Should West Ham look to tie down Alex Song on a permanent basis? Would AC Milan be a better move for the former Arsenal man?