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.
choragus choregus charkas charquis charks chirks shrugs sharks shirks
choragus tragus rags viragos drags reargues piraguas morgues crags brags frags argus argues rakus raggs ragas choregus