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.
killdeer kilter guilder collider colluder golder kelter glider colder gladder caldera quilter clowder coleader gleetier guiltier colter kultur
killdeer alder colder aulder balder holder billeter blader balladeer mouldier solder moldier polder solider milder welder bouldery wielder golder wilder colluder shoulder gilder bolder boulder molder caldera fielder eluder folder builder bowlder elder moulder slider older lader soldier melder deluder guilder welldoer glider wieldier collider shielder gelder yielder
killdee killed skilled skillet