Playoff Push Trade PLEASE HELP

I’m 5-6 in a Half PPR league and 3 people (including myself) are in a 3 way tie for the last playoff spot. Basically win and I am in! My questions are would you trade one of those “BIG 3” receivers for a running back (I was thinking Chubb). My second question is would you drop Metcalf and McLaurin to get Mattison and Pollard. Please let me know your thoughts, I need advice! Current roster is below:

QB: Matt Ryan, Darnold
HB: Kamara, Carson, Singletary, Samuels
WR: Julio, Adams, Godwin, Woods, Mclaurin, Metcalf
TE: Waller
D: Steelers.