气味相投: have the same likes and dislikes; be birds of a feather; be like-minded; be congenial to; be of the same cast of mind; be of the same tastes and temperament; be two of a kind; congenial to
一丘之貉: be tarred with the same brush [stick]; be jackals of [from] the same lair; be of the same batch; be a bird of the same feather; be cut from the same cloth; be of the same species; birds of
一路货色: be of the same mould [stock; kind; brand; stripe]; be tarred with the same brush; be tweedledum and tweedledee; cut from the same cloth; goods of a kind; (to be) two faces of one coin
