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.
corgis courages gorges courageous gorgeous carriages gurges garages greiges grudges
corgis ragis urges dirges serges purges regius barges forges verges gorges gurges larges marges merges orgies parges pierogies pirogies porgies sarges surges targes charges