WDIS? RB2 and Flex

I need help picking and RB2 and a Flex. Full point ppr pick 2. Marlon Mack, Nick Chubb, Leonard Fournette, Marquez Valdes-Scantling.

Chubb and MVS. Fournette is coming of the injury to somewhat of a timeshare between three backs. Mack has a rough matchup and I think the jags are going to comeback in a big way this week. Chubb has a great matchup and consistent touches. MVS is the no. 2 receiver for the best quarterback in the league, with a good corner matchup, and his team absolutely needing to win to sniff the playoffs.