Here's what rhymes with certifier.
                        
                        
                    
                                fire  higher  hire  sire  hier  shyer  shier  desire  wire  buyer  tire  attire  friar  liar  pyre  defire  flyer  dyer  flier  versifier  fryer  frier  ratifier  wrier  wryer  prior  acquire  amplifier  choir  drier  dryer  briar  crier  brier  pacifier  trier  prier  surefire  fortifier  applier  notifier  spryer  pryer  soupier  sprier  entire  supplier  classifier  conspire  occupier  rectifier  signifier  ceasefire  purifier  qualifier  transpire  magnifier  misfire  falsifier  rewire  spitfire  testifier  sicklier  slimier  limier  raspier  wispier  kitschier  require  enquire  identifier  multiplier  quantifier  emulsifier  humidifier  croupier  barbwire  beautifier  sweetbriar  sweetbrier  grimier  crispier  pricklier  intensifier  electrifier  wrinklier  crinklier  Words that almost rhyme with certifier
fiber  fibre  finer  fighter  cider  cipher  hyper  heifer  signer  viper  visor  cypher  fiver  hiker  filer  shiner  viler  assigner  fifer  firer  hider  fibber  writer  minor  wider  designer  lighter  supervisor  adviser  fertilizer  provider  rider  tiger  wiser  advisor  iiber  liner  miner  spider  survivor  tighter  timer  decipher  dimer  diver  finder  miser  nicer  slider  titer  diaper  diner  divider  diviner  divisor  niger  piper  riser  slighter  sniper  whiter  appetizer  atomizer  geyser  miter  riper  wiper  biker  kaiser  niter  reciter  biter  decider  definer  lifer  liker  nigher  shyster  slicer  tiler  guider  miler  rhymer  righter  whiner  aligner  appetiser  chastiser  defiler  direr  piker  ricer  rimer  tither  deicer  skiver  rifer  snider  aliner  eviler  chicer  driver  brighter  outsider  admirer  binder  milder  primer  advertiser  analyzer  incisor  insider  kinder  wilder  climber  glider  underwriter  exciter  refiner  striker  sympathizer  minder  reviser  vaporizer  blighter  baptizer  briber  inciter  ionizer  modernizer  preciser  reviler  atomiser  blither  cosigner  encipher  splicer  whitener  baptiser  twiner  griper  unwiser  vivider  conciser  triter  advertizer  fraternizer  unriper  compiler  grinder  stabilizer  colonizer  synthesizer  copywriter  sandpiper  sublimer  backslider  blinder  combiner  describer  exerciser  improviser  energizer  merchandiser  moonshiner  pasteurizer  rhymester  harmonizer  mobilizer  pressurizer  imbiber  improvisor  decliner  pasteuriser  subsidizer  unkinder  vulgarizer  rapider  lucider  humider  reminder  organizer  subscriber  inquirer  enquirer  equalizer  sterilizer  contriver  oxidizer  recliner  transcriber  moisturizer  womanizer  economiser  immobilizer  visualizer  breathalyzer  mesmerizer  tenderizer  breathalyser  faultfinder  inscriber  moisturiser  monopolizer  temporizer  criticizer  eulogizer  humanizer  firelighter  patronizer  philosophizer  plagiarizer  criticiser  pressuriser  alphabetizer  rangefinder  deodorizer  childminder  microfiber  splendider  tranquilizer  proselytizer  proselytiser  liquidizer  gormandiser  tranquillizer