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.
keefs kefs kiefs keeves kafs kifs kaifs kufis cuvees coffees kvas
keefs beefs reefs efs neves coffees peeves keeves nieves reeves reifs kiefs jefes sieves levees teffs chefs sheafs jayvees fiefs cuvees beeves vees ghees fees kefs leafs eves neifs effs refs seifs feoffees defis toffees chiefs sheeves