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.
kiss kissy kis koss kois kusso kousso cuisse qis kas kos koas kaas kays kaes coss keys kues keas cuss cusso gassy gauss guess guise gussy quais quass
hiss kiss miss gneiss piss diss wiss is