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.
chymous chymes chemos chamois chams chums shamos shmoes chimes chimbs shamus shamoys chamise chamiso shamois shammos chemise chamisa chammies shams shims shamas shames shawms shammas shammes shmooze
cymous chymous simious cymose timeous gummous mouse mousy awmous famous moues comous meous momus nimious ramous rimous haymows mos mus