Shrugs Best Pull Assistance Other Than Squats?

Thanks guys I appreciate your input. My second pull is my strength so I suppose I need to improve my first pull . My deadlift is only 215kg , so I guess I need to get my firs pull improved with deficit deadlifts and RDLs for true first pulls OLs.

I find the snatch pulls a lot easier to do . I maxed out doing 180kg clean pulls to navel height.