Here's what rhymes with zapfen.
                        
                        
                    
                                happen  Words that almost rhyme with zapfen
hadn  satin  haben  fatten  sadden  atom  cabin  flatten  batten  madden  imagine  datum  madam  madame  gladden  platen  stratum  macadam  substratum  tarmacadam  fashion  famine  salmon  fasten  ashen  aspen  action  passion  captain  barren  cannon  canon  faction  wagon  chaplain  gallon  ration  actin  anion  assassin  baron  caption  falcon  saffron  admin  dampen  hangman  slacken  flagon  mammon  talon  gammon  adman  admen  ashcan  fraction  sanction  dragon  mansion  canyon  bastion  canton  stallion  blacken  bracken  jasmine  madmen  waxen  adaption  amnion  banyan  capstan  chanson  flaxen  handgun  refashion  scansion  unfasten  scallion  damson  badman  badmen  flashgun  raglan  gasman  refasten  sandmen  reaction  abandon  traction  inaction  exaction  plantain  batsman  dispassion  gravamen  klaxon  trashcan  taxman  gyrfalcon  taxmen  expansion  attraction  compassion  grandson  battalion  diffraction  refraction  plankton  infraction  medallion  redaction  reexamine  clansmen  diapason  landsman  clansman  triathlon  bandsman  interaction  companion  transaction  abstraction  extraction  craftsman  distraction  retraction  subtraction  compaction  prolactin  draftsman  draughtsman  rarefaction  benefaction  contraption  detraction  draftsmen  stupefaction  overreaction  pentathlon  rapscallion  malefaction  satisfaction  contraction  liquefaction  phytoplankton  counteraction  protraction  petrifaction  upperclassman  vitrifaction  putrefaction  underclassman  dissatisfaction