plot

図る(はかる)	A fairly neutral word for ‘to scheme or plan':‘The committee plans to raise interest rates’

企てる(くわだてる)	Unlike 図る、企てる is more negative:to scheme, to be up to something. To be hatching a nefarious plan. $$$

謀る(はかる)	To plot a murder! Murder most fouuullll!!! (Almost never used.)