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