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.
widow whid wide widdy whidah widdie wit wud wed wot wad wite wade weed wait wady wadi wood whit woad
widow dow fido video kiddo lido meadow meadowy dido shadow shadowy