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.
mannoses manses meannesses menses minuses monoecies minces menaces minacious monecious monoecious mensas
gnoses hypnoses zoonoses mannoses noses sinuses hypnosis conioses penises anuses ginzoes nonuses minuses manses geneses onuses sanseis nooses noises gnosis lenses kineses lionises anises zoonosis tennises tonuses quinsies pansies kenosis joneses censes pensees genuses ionises nouses kinases enosis guanases senses senseis hanses genoises menses venuses finises ensues bonuses linseys rinses rennases tansies tenses unsews
mannose mannas manos meanness minnows