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.
busy bousy bus buys buss bouse bossy beaus bassy buoys boughs bas bis bes bos bys boas bias bows bise bioassay boss bays bees bass boos beys baas boys base bios buzz bassi basso boozy bowse byssi