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.
kata kat gateau cat qat gat kit kyte koto gait keet kite goat coat gate cate keto kadi catty coati cotta gutta kitty kotow quate quota