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.
comedies comedos coembodies comities commodes comets comtes commodious commits committees comates commutes combats gametes gomutis comatose gambades gummites quomodos
remedies comedies medias medius middies moieties muddies embodies imbodies coembodies limeades nimieties reembodies
comedo comedy comade combed comet comte