#3 Alisson (AS Roma)
The goalkeeper is one of the most sought-after players in the world at this moment, with several high-profile clubs looking to make a bid for the player in the summer window.
He may have had four goals scored against him by Barcelona in the Champions League quarterfinal, but clubs such as Liverpool and PSG are unlikely to lose interest any time soon.
With Klopp looking for an experienced starter in the goalkeeper position, Allison could prove the natural choice.
Allison has started for Roma in most of their games this season. The Brazilian is known to possess great reflexes and is efficient at stopping shots from close range. Besides that, he has shown he's capable of giving long-range passes the Liverpool offensive line could quickly latch onto and turn into scoring opportunities.