I've taken a list of English words, and examined each of them to see what they sound like (using the PHP metaphone function). This page lists the most common metaphone codes, along with their words. You can also search for a word of your own, and see which words sound similar - and which ones rhyme, and which ones alliterate.
tyred treed trued tired tared tried tread tarred toured tiered teredo teared tarried tret trod trad turd dured dreed trode triad trite trade treat dared torte tardo dread dried turret toroid hydrid terete terret tirade torrid triode deaired hydride hydroid tart tort trot
tyred gyred red cred quarried ired hired bread preed creed furred read sored barred carried cared bred jeered cured queried whored burred chared laired wearied oread jerreed uredo veered gored shred fired hared berried freed curried heired feared choired bared yird toured churred whirred wared bored deaired treed dreed trued worried tiered pored teared tarred pared cheered shirred tiaraed parried sheared zeroed mired sired nereid cered knarred birred marred dured pureed loured mured wried rared aired reread sered breed faired queered cried oared harried jereed reed herried rued seared tried gnarred redd fared garred dared reared cored varied serried erred greed geared eared foredo buried quired jarred curred juried rede parred haired ferried soured lured brede caried married aeried waired pried neared roared dread poured credo peered tarried hurried tired leered paired dried purred fried tared moored soared redo warred teredo chirred charred tread wherried wired whirried chored shared sheered chaired shored shrewd yard yirred
tyre tare tire tore tree trey true tyro strew