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.
ibises ibices
bises soubises tabbises ibises abbacies baases abysses riboses obsess bices baizes buses abioses busses bases basses beses bizes subbasses diabases bossies biases abscissa debases biasses bowses rubasses rebuses cabooses booboisies phoebuses ibices bosses abuses abscise abbesses abases busies subbases bouses