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.
kier kir keir kyrie kerry gooier kerria kor coir kuru goer kora kore cooer curie guiro karoo kauri kaury korai queer query quire
bier vier gooier kier lier pier wrier zooier doughier tier shier er