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.
taiga tag toga taka togae dagga dig dag teg tog tic tug dago teak take taco tack tiki tike tegg tick
saiga taiga aga viga haika giga guaiac kaiak quagga raga saga dagga