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.
tis tuis ties dis tas tissue tissuey tews taos tows tass toss taws tees toes taus dais dies toys teas diss tawse touse tasse tease toeas disci daisy tizzy wytes tassie tussah tusseh