Here's what rhymes with propanoids.
                        
                        
                    
                                avoids  voids  adenoids  paranoids  choroids  carotenoids  hemorrhoids  haemorrhoids  solenoids  alkaloids  asteroids  humanoids  cuboids  anthropoids  mongoloids  Words that almost rhyme with propanoids
droits  quoits  introits  noise  moins  annoys  moils  boys  soils  coins  coils  joins  joys  toys  boils  loins  poise  toils  foils  adjoins  uncoils  doyens  roils  purloins  enjoys  spoils  enjoins  sepoys  groins  broils  conjoins  ploys  quoins  groynes  trefoils  goitres  cloys  gumboils  overjoys  employs  employes  deploys  recoils  rejoins  corduroys  subjoins  despoils  embroils  reconnoitres  tenderloins  reboils  destroys  viceroys  hydrofoils  sirloins  killjoys  redeploys  reemploys