#3 Jurgen Klopp

The Liverpool manager is known for his humbleness, charisma and heavy metal football. He has been described as a manager who is a dream to play for by many players. The German prefers to play exciting attacking football and is also capable of switching tactics as well.
This season he has managed to challenge Pep Guardiola's mighty Manchester City and he is seen as the man who will finally win the title for Liverpool. He also broke Bayern's domestic dominance in the Bundesliga as, under him, Borussia Dortmund managed to win back to back Bundesliga titles.
If reports are believed to be true then if this season Liverpool do well in the Champions League and win the Premier League, then Real Madrid would genuinely consider bringing him to Santiago Bernabeu next season.
Klopp always in his career had to build a team from scratch and young players, but at Madrid, he will have a team of superstars where he can easily implement his ideas and win trophies.