Ibrahimovic scored 28 goals in 46 appearances for Manchester United before suffering a season-ending knee injury.
Had the 35-year-old striker remained fit, United would have almost certainly triggered the option of an additional year in his contract.
But his long-term injury has cast doubt over whether he will be at Old Trafford next season.
However Ibrahimovic's representative Raiola insists the former PSG and Barcelona striker wants to stay in England.
He told talkSPORT: "Oh, yes. He wants to stay in England, he wants to stay at the top and if he sees that he can be a valuable asset for Manchester United, then why not Manchester United?
Zlatan Ibrahimovic celebrates Man Utd Europa League win Thu, May 25, 2017
Click through the gallery for the best snaps of Zlatan Ibrahimovic celebrating Man Utd's Europa League win
Play slideshow Man Utd via Getty Images 1 of 12
Zlatan Ibrahimovic ditched his crutches to celebrate Man Utd's Europa League win
Zlatan Ibrahimovic wants to stay at Manchester United
He wants to stay in England, he wants to stay at the top
"He can be a valuable asset for some other top clubs also.
"But I think it is respectful to talk to Manchester United and to see what all parties want."
Get Quotes on Home Insurance
Despite Ibrahimovic's preference to remain with United, Raiola hinted they had been approached by rival clubs.
"We have a lot of offers and ideas and we have to evalute them," he said.
Zlatan Ibrahimovic holds the Europa League trophy
"He has had a fantastic time at Manchester United and it is up to the club and myself to see what the future brings.
"For now, it is important he recovers well and then we will see."
Should United and Ibrahimovic fail to agree a deal, his replacement could be Antoine Griezmann.
Reports in Spain yesterday suggested Griezmann had told Atletico Madrid that he wants to leave this summer.