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.
denims dunams dynamos tonemes tinamous
nims denims paynims minims bienniums fanums hyponyms miniums animas animes animis animus hahniums venoms hymeniums ioniums genoms coniums linums noms muoniums phenoms dunams