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.
spuds spades speeds spouts spodes speedos septs spats spits spots spaits spates spites sapotas sapotes sippets sopites
spuds puds pads peds pods puts apods bipeds bipods cupids keypads lipids mopeds kneepads rapids updos
spud spade spado sped spode spout spued sputa