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.
moldy mouldy mold mould melody malady milady moiled mildewy molt mild meld milty melty muled molto malty moult malled mauled miladi mailed meloid mildew melled mewled milled mulled melodia miauled malt melt milt
moldy oldy old fooled could milady sold poled baldy mouldy hold bold belady malady fold glady soldo solid told tooled woald wooled shooled bloody mold lady mould toled wieldy soled doled cloddy melody soldi pooled jolty would wold ploidy holed gold voled gaoled cooled coled cold cloudy should
mol moil mola mole moll mollah mollie molly moly mool moola moolah mooley amole