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.
scoria scoriae sacra score scour scry scar scree scary sucre scare screw scaur screwy scarey scarry secure scurry sowcar sicker soaker soucar sacker sucker cicoree soggier suckier
scoria coria scoriae pakora okra begorra begorah aquaria agorae agria agora korai kora kerria curiae curia taqueria