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.
decades decodes ducats dacoities dakoities ducts dicots dacoits dakoits diquats dockets
facades cades decades cads cockades decodes cadis caids cates codes vacates locates recodes cicadas cycads scads nicads chickadees