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