Cristiano Ronaldo has led the line this season with middling displays from the likes of Marcus Rashford, Jadon Sancho and Edinson Cavani around him.
Rangnick will take up his consultancy role in the summer with the aim of signing at least two “modern” strikers who can play out wide or as a false nine.
“It’s obvious the club needs at least two new strikers who give this team more quality and more options,” Rangnick said. “I wouldn’t even call it wingers.
“Two strikers and modern strikers, that do not necessarily have to be wingers. If you look into international football, there aren’t many top teams who still play with two strikers. Most play with either three strikers or a false nine.”
As Erik ten Hag prepares to take over at Old Trafford, Rangnick spelled out the sort of player United lack in comparison to their rivals.
“If you look at Liverpool and Manchester City… they have five or six top-class strikers,” the German told reporters.
“Gabriel Jesus, until four weeks ago, hardly played [for City]. Now he’s playing again regularly. You look at the number of players they have and if you ask me is he playing as central striker or winger? Is Jack Grealish a winger or striker?
“They’re all strikers and can play in different positions. They can also switch, they can rotate. Those kinds of players, we don’t have that many.”