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.
tombac tomback tambac tombak tambak domic
tambac tombac mac mack iambic limbic oomiac smack sumac tambak tomback tombak umiac
tomb tomboy tom tome tommy toom atom atomy stoma