#2 Benjamin Pavard (Stuttgart)
Pavard rose to prominence during the World Cup with France, where he played at right-back, and was one of the breakout stars of the tournament. In the Bundesliga with Stuttgart, he has continued his form from the World Cup, and at 22, looks like he could grow into a quality player.
He has been deployed usually as a centre back for the German side, and that is his more natural position. This will certainly benefit Liverpool, as it means they would add depth at centre back, while also adding some cover at right back, where they look vulnerable if Trent Alexander-Arnold were to pick up an injury.
Pavard is someone who has the attributes Klopp looks for in a defender, as he is good defensively, and has the ability to pass the ball out from the back.