Here's what rhymes with yion.
                        
                        
                    
                                ion  lion  scion  baryon  prion  aphelion  dandelion  perihelion  Words that almost rhyme with yion
diam  einen  lichen  lighten  ripen  liken  liven  frighten  tighten  widen  bison  brighten  heighten  siren  beiden  hyphen  siphon  hymen  syphon  whiten  lineman  linemen  thriven  titan  horizon  enlighten  fibrin  fireman  firemen  enliven  pinyon  linesman  billycan  finespun  bedizen  funnyman  cotyledon  veniremen  dicotyledon  monocotyledon