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.
creamery creamer creamier crammer crimmer crumber gramary crumbier crummier grammar grimier grimmer groomer grummer krimmer
creamery rammer reamer roamer armer farmer framer harmer crammer creamer creamier gramary dreamer dreamier warmer charmer
creamy cream cram caramba coremia crambe crambo creme scram scream