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.
leucines leucins laciness lousiness lysines lucence laziness looseness lysins lessens license loosens lucency lessons licence liaisons licencee licensee
cines oscines hyoscines fascines leucines cheesiness wheeziness sozines piscinas sassiness scenes raciness scions cosiness fussiness zines jazziness cassines sines sinews sissiness ooziness ricinus laciness gauziness cuisines cions acinus lousiness massiness messiness mousiness mussiness newsiness noisiness dizziness ficins mucins wooziness diazines gassiness sauciness muzziness ricins coziness azines laziness maziness mossiness leucins lysines bossiness siziness doziness puisnes juiciness seines booziness queasiness nosiness iciness cosines fuzziness foziness eosines easiness business niacins rosiness haziness