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.
phonons phoniness fanons fanions venins venenes venines
phonons knowns ronions renowns pinones pennons ninons guenons canons minions neons nonas nones noons nouns wanions tenons anions annonas cannons reunions pinons pinions onions munnions conins quinones bunions ionones inions honans fanons fanions unions xenons chinones