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.
babel babul babble babool bauble bible bubal bobble bubale bubble bubbly
babel label bel viably tabla gable suably cowbell seeable cable sabal cabal rebel jebel libel fable viable babul ably able abele bell liable obeli rubel sable suable doable table
babe baba baboo babu baby baubee bawbee baobab