Looking to improve RB depth

Hey I’m looking to improve my RB depth. Can you give good mid level targets? Im looking to swapp a WR for a RB. I’m in a 4ptQB standard league.

Current RBs- CMC, Sanders, Taylor, Hunt, Gibson, Harris ( have a waiver claim for Leveon Bell)

Current WRs- Golladay, Godwin, AJ brown, McLaurin, DJ Moore, Chark,