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.
cuckold cackled cockled keckled cucullate goggled guggled
cuckold cold chuckled tackled sickled ruckled pickled nickled knuckled mackled keckled cockled cackled heckled hackled buckled acold could coled scold suckled tickled shackled