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.
bossiness bassness business booziness baseness biasness busyness basins bioscience bizones bassoons bosons bosuns besnows biocenose
bossiness gassiness fussiness rosiness queasiness lousiness easiness business nosiness mussiness noisiness cheesiness massiness newsiness mossiness sissiness messiness cosiness sassiness mousiness sines oscines bassness siziness sinews iciness eosines ooziness fuzziness booziness busyness foziness muzziness maziness cassines jazziness seines haziness wiseness looseness laciness biasness dizziness raciness gauziness lysines sauciness piousness coziness juiciness doziness laziness baseness cuisines wheeziness sissyness fascines wooziness cosines hyoscines sins