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.
cordate cordite corotate corded crated curated gradate created curtate courted corroded graduate corraded grated carted carded curded credit gordita crowded crawdad crudity crudded curetted crawdaddy graded grided carotid garoted greeted gridded gritted grouted guarded quartet quirted
cordate airdate chordate serrated berated hydrated deaerated cerated predate pirated orated lyrated graduate curtate radiate rated redate aurated borated reradiate derated aerated foredate irradiate gyrated cordite crated curated gradate grated narrated periodate prated eradiate