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.
babul babel babble babool bauble bible bubal bobble bubale bubble bubbly
babul viably tabuli tabla suably seeable sabal nebule lobule liable label gable cable cabal viable buhl fibula fable babel ably able bull nebula nebuly sable suable doable table tubule
babu baba babe baboo baby baubee bawbee baobab