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.
grimier grimmer crimmer groomer grummer krimmer creamier crumbier crummier crammer creamer crumber gramary grammar creamery
rimier grimier wormier trimer primmer primer premier krimmer crummier crumbier crimmer creamier germier firmer brimmer broomier barmier rummier roomier rimmer rimer rammier grimmer lorimer premiere primero dreamier trimmer chromier