Here's what rhymes with espion.
thespian Words that almost rhyme with espion
lesbian carrion ovarian clarion ferryman vestrymen ferrymen vestryman agrarian pedestrian equestrian chameleon librarian barbarian sectarian vulgarian libertarian vegetarian sanitarian seminarian cnidarian authoritarian egalitarian proletarian antiquarian trinitarian veterinarian centenarian utilitarian totalitarian octogenarian nonsectarian nonagenarian humanitarian communitarian disciplinarian sexagenarian parliamentarian latitudinarian septuagenarian valetudinarian