Here's what rhymes with aftertoon.
tune boon doin dune baboon attune soon afternoon moon noon balloon spoon platoon foon opportune buffoon coon pontoon prune bassoon loon rune goon jejune spittoon patroon shoon cartoon hewn lagoon saloon shewn strewn cocoon toluene harpoon maroon raccoon swoon typhoon tycoon croon festoon lampoon doubloon immune monsoon forenoon aucune dragoon impugn inopportune importune poltroon bestrewn racoon honeymoon tablespoon spermatozoon picayune protozoon macaroon dessertspoon trinitrotoluene Words that almost rhyme with aftertoon
boom tomb doom whom room assume bloom womb broom loom plume zoom rheum abloom costume gloom perfume groom fume flume entomb foredoom resume consume presume residuum suum subsume legroom elbowroom boxroom exhume strongroom