Here's what rhymes with cnoll.
mole knoll whole role soul coal goal hole pole roll sole bowl fol poll toll shoal dole foal bole boll thole vole kohl tole dolour stole parole scroll stroll enroll droll troll unroll maypole prole skoal systole vacuole cajole condole oriole beanpole rissole innersole control patrol casserole extol petiole bedroll camisole cubbyhole extoll glycerol buttonhole decontrol pigeonhole arteriole profiterole quadrupole