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.
seisure seizure scissure seiser seisor cesurae seizor seizer cesura scissor sissier sizar sizer saucer sizier sassier saucier suasory
seisure leisure sure assure fissure caesurae measure rasure reassure cesurae scissure seizure diseur chaussure