RB Start/sit week 1 question

Between Josh jacobs, ekeler, david montgomery and chris carson and tony pollard, which 3 should i start as my 2 RBs and 1 flex in a PPR league?

Pollard is of course assuming zeke does not play week 1

Carson Jacobs. Then between Monty and pollard at flex packers or giants either one should be a good matchup for rb