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.
cheddary cheddar chuddar chadar cheder shedder chudder cheater shuddery chattery chider chadri chador chatter chitter chowder shudder chattier shoddier shader
cheddary dairy deary diary feodary feudary cedary sudary zedoary doddery cheddar chuddar shuddery dry