Which RBs to start for Week 1 of Playoffs?

Half-PPR scoring, I have 2 RB slots and 2 Flex, so basically need to choose 4 of these guys to start:

Derrick Henry @ Bengals

Saquon vs Raiders

Chase Brown vs Ravens

Judkins @ Bears

RJ Harvey vs Packers

Woody Marks vs Cardinals

Literally have no idea which 4 to start and which 2 to bench so any advice is appreciated, thank you