Edinson Cavani of Napoli, Fernando Llorente of Athletico Bilbao and Gonzalo Higuain of Real Madrid are three international forwards that present European experience and would be welcome additions to the United squad.
However, the Red Devils will need to offload a portion of their current strikeforce if they are to make a big money signing, with the likes of Mame Biram Diouf, Federico Macheda and Dimitar Berbatov all playing second fiddle to Wayne Rooney, Danny Welbeck and Javier Hernandez.
The trio have all shown the potential to be top class forwards on their day, and have all been associated with European moves in the past.
Higuain is the youngest of the batch at 23 years-old and would probably be the preferred option for Sir Alex Ferguson as he brings in another generation of youthful stars at Old Trafford.
The Argentinian has scored over 70 goals in just over 130 games at Real Madrid providing a dilemma for the Manchester United boss who has Cavani on the other hand who scored 33 goals in his debut season with Napoli.
Llorente is the oldest of the three at 26 years-old and throws his height around well on both a club level and for the Spanish national side, and is an attractive prospect for any manager.