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