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.
nagana noggin
nagana gan signa regain kana jacana gaen gain gane gaun goanna canna guan laguna guanay began bogan vegan hogan iguana lagan ligan logania again logan pagan regna wigan