Here's what rhymes with spyo.
                        
                        
                    
                                low  o  blow  au  pro  row  lo  oh  owe  aux  ro  yo  eau  ow  eux  oe  roe  yeux  bro  rho  trow  no  so  know  go  though  below  show  co  flow  grow  slow  throw  tho  fo  foe  glow  ho  bo  doe  dough  fro  mo  po  toe  wo  woe  crow  hello  thro  tow  beau  bio  ceux  faut  goe  hoe  jo  ko  sew  soe  vo  beaux  cho  dau  floe  mow  noe  sho  tuo  zo  throe  sloe  tarot  whoa  doh  borzoi  although  ago  snow  plateau  quo  audio  chateau  folio  stereo  forego  forgo  polio  propos  tableau  uno  aglow  dicho  escrow  outgrow  siglo  tableaux  topos  chateaux  dunno  plateaux  stow  trousseau  chapeau  oleo  turbot  deathblow  foreknow  kayo  chapeaux  fatso  pekoe  trousseaux  schmo  resew  schmoe  ratio  radio  embryo  overthrow  studio  bestow  buffalo  overflow  patio  nouveau  vertigo  aliquot  apropos  rodeo  spatio  afterglow  kapok  piccolo  overgrow  regrow  bandeau  gateau  matzoh  gateaux  romeo  tallyho  undergo  indigo  portico  bungalow  calico  dynamo  cameo  domino  medico  mistletoe  adagio  undertow  politico  presidio  oregano  pistachio  pompano  mustachio  microdot  moustachio  portfolio  archipelago  impresario  braggadocio  pianissimo  generalissimo