Here's what rhymes with propru.
                        
                        
                    
                                you  true  blue  drew  u  blew  lieu  lu  rue  brew  loo  pew  yew  yu  ewe  ru  roux  to  who  do  two  new  through  too  few  view  due  knew  du  grew  que  crew  threw  coup  flew  q  qu  shoe  zu  clue  cue  dew  glue  hue  queue  shew  su  sue  tu  vous  accrue  chew  cu  deux  flue  fu  slew  untrue  zoo  bu  flu  hu  ju  jus  ku  mu  nu  peu  piu  pu  seu  shu  sou  thru  vu  woo  boo  chou  chu  coo  cou  doo  feu  fue  gu  hew  mieux  shou  shrew  sprue  thu  tue  tzu  vou  vue  wou  wu  clew  goo  mew  moo  pooh  strew  poo  shoo  spew  gnu  slue  thew  whew  phew  regrew  review  pursue  screw  anew  renew  undue  debut  stew  subdue  taboo  undo  adieu  ado  skew  tattoo  beaucoup  outdo  revue  askew  imbue  outgrew  redo  halloo  valuer  endue  fondue  indue  bestrew  prevue  overdrew  booboo  achoo  atishoo  into  overview  withdrew  bamboo  canoe  ensue  retinue  construe  jusqu  overthrew  eschew  shampoo  sinew  vnto  ballyhoo  hullabaloo  foreknew  zebu  kazoo  muumuu  overflew  overgrew  wazoo  interview  revenue  residue  avenue  rendezvous  caribou  overdue  barbecue  overdo  honeydew  barbeque  bugaboo  marabou  peekaboo  buckaroo  overshoe  superglue  hitherto  kangaroo  cockatoo  misconstrue