Opare joined Real Madrid in 2007 and was expected to break into the team last season, but the Ghana youngster suffered injury problems.
Lyon, PSV Eindhoven, Club Brugge, Buraspor and Wolfsburg are among the other clubs interested in the talented youngster.
“Daniel is fully fit again now and is ready to play next season,” Opare’s representative Chris Nathaniel told Sky Sports.
“Of course his injury means he will not be considered for Real’s first-team but he hopes a spell on loan somewhere could help him come to the attention of Jose Mourinho.
“With that in mind, Daniel is now considering his options carefully as he has a number of options and he is already looking forward to pre-season training – wherever that may be.”