Which three of these players should I select to be my keepers? (PPR, 3 flex spots, 12 Man League, No direct draft cost for keepers)

My league works by picking one guaranteed keeper, and then three other keepers (that are a different position of the guaranteed one) and one of them are lost via wheel spin to the draft, but you keep the other two .

I chose Ja’Marr Chase as my guaranteed keeper, and need to decide which of these three are the most valuable:

Kenneth Walker

Jerome Ford

Rhamondre Stevenson

Trey Benson

Kareem Hunt

Tucker Kraft