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.
curtate curated corotate curetted crated cordate courted created quartette carted grated curded gritted quirted gradate cordite quartet corraded grottoed garotted graduate garrotted credit graded corded carded greeted crawdad gordita grouted crudded crowded garoted carotid guarded crudity
curtate irritate hydrated deaerated cerated pirated orated lyrated grated curated crated corotate cordate gyrated aerated rated borated berated aurated airdate rotate narrated partite prated serrated derated chordate
curt court curate curet curette curite kurta