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.
hiss hissy his hies hussy hoise has hes hos hues hose hows haes hahs hays hehs hoes hoys hews haws hawse hosey house
hiss kiss miss gneiss piss diss wiss is