Here's what rhymes with curation.
                        
                        
                    
                                relation  nation  duration  oration  aeration  elation  creation  location  station  correlation  rotation  alteration  narration  ablation  cremation  dilation  gradation  legation  operation  formation  circulation  corporation  occupation  radiation  regulation  variation  elevation  inflation  isolation  liberation  migration  realization  revelation  salvation  violation  allocation  irrigation  irritation  notation  quotation  recreation  vacation  vibration  accusation  aggregation  aviation  calibration  causation  cessation  filtration  graduation  mutation  negation  ordination  oscillation  probation  realisation  toleration  vocation  aberration  adoration  allegation  alternation  appellation  castration  citation  coronation  donation  emulation  exaltation  hydration  inhalation  iteration  ovulation  relocation  reparation  sedation  summation  ulceration  education  population  situation  application  generation  association  cooperation  foundation  legislation  preparation  reputation  separation  translation  activation  admiration  calculation  cultivation  declaration  deviation  exploration  illustration  immigration  innovation  limitation  motivation  obligation  orientation  restoration  sensation  taxation  acceleration  agitation  alienation  appropriation  arbitration  aspiration  celebration  collaboration  coordination  decoration  degradation  delegation  excitation  fixation  frustration  imitation  inclination  oxidation  plantation  proliferation  relaxation  reservation  respiration  saturation  segregation  simulation  speculation  temptation  valuation  affiliation  affirmation  animation  annihilation  approbation  authorization  coagulation  compilation  consolation  derivation  desolation  dilatation  dislocation  elaboration  emigration  expiration  federation  globalization  incubation  insulation  irradiation  litigation  localization  maturation  mediation  moderation  modulation  polarization  reformation  replication  retaliation  retardation  starvation  validation  veneration  automation  cancellation  connotation  culmination  damnation  elongation  escalation  exhortation  exportation  fibrillation  gestation  gravitation  inauguration  innervation  inoculation  perforation  recitation  reclamation  refutation  renovation  revocation  usurpation  information  organization  combination  explanation  conversation  evaluation  integration  observation  publication  accumulation  adaptation  appreciation  conservation  exploitation  formulation  indication  inspiration  invitation  organisation  preservation  stimulation  accommodation  assimilation  computation  confirmation  congregation  consultation  deformation  dissertation  domination  elimination  estimation  hesitation  illumination  implication  incorporation  inflammation  initiation  installation  medication  meditation  navigation  negotiation  nomination  penetration  proclamation  propagation  regeneration  registration  resignation  termination  utilization  vegetation  ventilation  annexation  articulation  attenuation  clarification  colonization  complication  dedication  deliberation  deprivation  desperation  dissipation  dissociation  distillation  evacuation  evaporation  exaggeration  excavation  fabrication  fascination  habitation  humiliation  importation  incarnation  infiltration  ionization  mobilization  purification  remuneration  socialization  abbreviation  affectation  amputation  augmentation  bifurcation  capitulation  commendation  conciliation  conflagration  conformation  consecration  constellation  consummation  dehydration  delineation  demarcation  deportation  deputation  deregulation  divination  duplication  elucidation  enumeration  eradication  exclamation  fluctuation  germination  imputation  interpolation  intimation  intonation  invocation  liquidation  perspiration  perturbation  prolongation  provocation  refrigeration  repudiation  sanitation  stagnation  stipulation  utilisation  vaccination  visitation  communication  concentration  consideration  examination  civilization  classification  imagination  presentation  compensation  configuration  expectation  condemnation  confrontation  consolidation  contemplation  continuation  degeneration  depreciation  designation  destination  deterioration  indignation  manipulation  qualification  assassination  civilisation  condensation  denomination  fermentation  gratification  notification  preoccupation  ratification  subordination  unification  verification  adjudication  amalgamation  calcification  confederation  confiscation  consternation  constipation  crystallization  devaluation  devastation  fertilization  immunization  implantation  inactivation  interrogation  masturbation  menstruation  mortification  normalization  ornamentation  punctuation  regurgitation  renunciation  resuscitation  segmentation  sterilization  subjugation  urbanization  vindication  interpretation  determination  participation  representation  transformation  demonstration  discrimination  modification  transportation  anticipation  approximation  characterization  contamination  documentation  emancipation  precipitation  recommendation  reconciliation  rehabilitation  amplification  certification  dissemination  fragmentation  generalization  intoxication  liberalization  modernization  multiplication  optimization  privatization  pronunciation  reorganization  signification  specialization  stabilization  argumentation  authentication  capitalization  categorization  centralization  denunciation  dispensation  extermination  hybridization  intimidation  magnetization  magnification  polymerization  rationalization  synchronization  visualization  administration  investigation  differentiation  implementation  justification  manifestation  specification  disintegration  sophistication  stratification  transplantation  democratization  nationalization  quantification  sedimentation  simplification  supplementation  identification  experimentation  decentralization  diversification  excommunication  hospitalization  instrumentation  personification  standardization  industrialization  conceptualization  intensification  misrepresentation  Words that almost rhyme with curation
haven  basin  hasten  occasion  evasion  equation  invasion  persuasion  laden  layman  laymen  taken  pagan  shaken  bacon  maiden  shaman  patron  awaken  straighten  salesman  contagion  forsaken  overtaken  tradesmen  mistaken  statesman  undertaken