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.
ensues enosis
ensues nonissues pensees genuses geniuses finises lionesses vainnesses lenses anises census gooeynesses sinuses lownesses nouses quinsies noises keennesses newnesses nooses noses wrynesses taeniases woenesses waenesses venuses uneases tenses nonuses teniases manses rennases duenesses feynesses menses senseis onuses hanses pansies bonuses anuses coynesses censes gnoses kinases gaynesses guanases ionises senses leannesses fewnesses nauseas kneesies linseys genoises lionises mannoses gneisses penises conioses newsies nesses rawnesses hypnoses meannesses nownesses sanseis finesses niseis zoonoses vinasses rinses tansies nisus tennises tonuses minuses unsews wannesses dunnesses shynesses