The West Yorkshire team is looking at Evan Ferguson, who is currently on loan from West Ham, as well as Cameron Archer from Southampton and Troy Parrott, a former Tottenham youngster.
Leeds earned promotion with 100 points from 46 games, narrowly beating Burnley on goal difference.
Troy Parrott is reportedly the top target, having impressed at AZ Alkmaar in the Dutch league after leaving Tottenham last summer.
In his 45 games, Parrott scored 20 goals and provided four assists, making him a valuable asset.
Leeds' current striker, Joel Piroe, won the Championship Golden Boot with 19 goals, but there are concerns about his ability to achieve similar success in the Premier League.