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.
widows whids wides whidahs widdies weds wots wads wits woods wadis wites wades waits weeds whits woads whites woodsy wadies waddies whiteys whities whydahs woodies
dows meadows shadows widows dos dose kudos kiddoes judos dews daws fados vadose vodous doss kowtows dowse lidos koodoos nowts redoes roadeos stows dados didos dodos dots nodose iodous does gowds dodoes redos rodeos nodous radios fidos eidos tows kiddos doodoos dadoes hoodoos voodoos videos eddoes kotows bedews audios ados adios duos udos didoes
widow whid whidah widdie widdy wide