Having Trouble with Starters

Hey so in my Full PPR league I need help with deciding on 2 RB, 2WR, and a Flex

RB: Kareem @ Cincy, RoJo @ LV, Gibson vs Dal, Gordon vs KC
WR: Lockett @ Cards, Golladay @Atl, Claypool @Ten, Chark @LAC

Im leaning towards RoJo, Hunt, Lockett, and Golladay for sure. The flex is the biggest decision as Gibson, Chark and Claypool all have favorable matchups