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.
hereby herby herb
hereby whereby foreby reb forebay carboy derby rebuy ruby forby nearby herby corby orby ourebi prebuy zareba grebe choirboy
here her hare hear heir hero herry hire hiree hoer