RB lottery tickets

Which back has the better potential to turn into value (standard league)…

Smallwood, D’onta Forman, Alvin Kamara

I just picked up Smallwood for nothing, but the other two are available and I want to make the best choice

If looking for a pure lottery ticket, then I think Forman would be the way to go. He may not be a reliable starter, but if Miller goes down then he would immediately be a great play