The Red Devils were pipped by Borussia Dortmund to the signature of 19-year-old striker Haaland, the son of former Leeds and Manchester City player Alf-Inge Haaland.
Ole Gunnar Solskjaer was understood to have earmarked the Red Bull Salzburg man as his number one target but is now being forced to look elsewhere.
The Everton striker, who has already hit double figures this season, was originally very much a back-up option for United in the summer transfer window.
But he’s now emerged as a serious option for Solskjaer’s men as they plot a return to the Champions League, according to The Sun.
Jadon Sancho is also a target for United, but their Premier League rivals Chelsea are believed to be leading the race for the £100m rated forward.
The Toffees would not let go of Calvert-Lewin without a fight, with new boss Carlo Ancelotti a big admirer of the striker.
United would likely to have fork out almost treble the £18m release clause that was inserted in Haaland’s contract if they want to add Calvert-Lewin to their ranks, with The Sun saying his price tag is £50m.