Roster help. need to ship a qb

Hey guys. 12 team 2 flex PPR league. Currently rostering 3 talented QBs due to early season injuries. Wondering who you think I should shop and what you think I could get in return. MUCH APPRECIATED BALLERS!

QB: Rodgers, Big Ben, Wentz
RB: CMac, Breida, A. Jones, Carson
WR: Green, JuJu, M. Williams, Godwin, Hogan
TE: Graham

Was thinking of trying to get a solid RB2 like Lynch. Or should I go for more PPR pass catching backs? One guy has terrible QBs and Kamara, Hunt, Lynch, Crowell but no clue what would be a decent offer to him.