I voted for Johnson. I believe the difference between him and any available at 40 is much greater than WR or RB.
At 40: Fannin jr., and Tre Harris,
Kaleb Johnson- RB, Iowa
Quinshon Judkins, RB, OSU
At 71:
Xavier Restrepo WR | Miami- slot
Savion Williams WR | TCU
Elic Ayomanor WR Stanford
Jack Bech WR TCU
Jayden Higgins Iowa St..
Kalel Mullings, RB, Michigan Probably around at 95 or even 112
Donovan Edwards, RB, Michigan - I have never seen rated higher than 180
TreVeyon Henderson, RB, OSU possible but not probable.
These are just the way my targeting works.