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.
afire affaire afore affair afar aiver affray aviary aver
afire fire refire fir frae fiar fere feirie fare fair buffier iffier vireo livre kaffir kefir fore riviere zaffre defier chaffier beefier coiffure froe caviare affair goofier affaire kafir afore leafier before miffier reefier free huffier puffier reifier zaffir daffier deifier chuffier