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.
joneses geneses jounces genesis genuses jaunces geniuses genoises ginzoes
geneses kineses joneses noses nesses feynesses kinases anuses anises bonuses lownesses lionesses lenses kinesis gooeynesses menses gaynesses newnesses manses nownesses hypnoses rawnesses rinses censes senseis sinuses zoonoses dunnesses tenses uneases waenesses woenesses guanases gnoses kneesies vainnesses unsews duenesses tennises senses synesis wrynesses sanseis penises rennases nonuses onuses meannesses minuses tonuses finises wannesses mannoses lionises fewnesses linseys keennesses leannesses genesis coynesses finesses genuses ionises hanses venuses shynesses