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.
communize communise communes commence commonness commons combines cummins gumminess
communize immunize feminize hominize humanize immunise communise romanize simonize deaminize demonize womanize