Here's what rhymes with niser.
                        
                        
                    
                                scissor  franchisor  Words that almost rhyme with niser
river  differ  liver  hither  thither  whither  fissure  giver  shiver  wither  fisher  wisher  dither  zither  quiver  sliver  stiffer  slither  deliver  lawgiver  upriver  downriver  inner  mirror  nearer  nigger  miller  dinner  bitter  bigger  liquor  richer  injure  killer  litter  pillar  singer  sinner  thicker  thinner  vigor  winner  emitter  filler  mixer  pitcher  rigor  vicar  bidder  dearer  fitter  shipper  simmer  sitter  tiller  wicker  digger  dimmer  hitter  mister  shimmer  zipper  dipper  kicker  picker  ringer  sicker  ticker  bicker  chiller  chipper  enure  jigger  rigger  snicker  titter  wringer  figure  picture  winter  mixture  silver  sister  filter  finger  timber  clearer  trigger  whisper  builder  hinder  quicker  thinker  flicker  ginger  glitter  linger  victor  glimmer  skipper  swimmer  cinder  clipper  fiercer  slipper  spinner  sticker  thriller  timbre  tinder  tinker  whimper  assignor  bringer  critter  embitter  fixer  lifter  limber  minster  sinker  trimmer  whisker  driller  flipper  fritter  grimmer  gripper  guilder  hinter  kilter  pilfer  pincer  quitter  skimmer  slicker  slimmer  stinger  twitter  winder  consider  familiar  printer  fixture  tincture  beginner  blister  drinker  elixir  swifter  vizier  clinker  reenter  stringer  stripper  chorister  clincher  drifter  twister  vintner  scripture  admixture  resistor  sphincter  stricter  stricture  configure  splinter  midwinter  spinster  trickster  bewilder  distiller  resister  scribbler  scrivener  sprinter  transistor  transmitter  unfamiliar  predictor  reconsider  caterpillar  sprinkler  babysitter  disfigure  freethinker  prefigure  discomfiture  constrictor  quicksilver  expositor  gravedigger  transfigure  teleprinter  neurotransmitter