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.
bios bos bis bows bise boos boas boys bias boss bossy bouse bowse bioassay bousy buoys boughs biz bys bus bes bas bowwows busy beys buys baas bozo bays bize base bass buss bees bice booze boozy baiza bassi basso bassy bazoo beaus baize byssi