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.
mould mouldy mold muled moldy moult mulled mauled moiled molt meld miauled mild molto mewled mullet muleta miladi melled malled mailed milady milled meloid mildew melody malady melodia mildewy mulatto mullite malt melt milt
mould should would could old fold soldi soled poult ruled gold holed poled aloud fooled woald cloud cloudy wooled hold cauld hauled voled fouled mauled moult shauled souled pooled tooled auld moldy gaoled shooled fauld miauled mold oldy loud build muled mouldy cold told coled bold guild puled sold soldo solid doled toled wauled wold cooled yauld
mol molly mulley mulla muley muhly mouille mooley moolah moola mool moly mollie maul mollah moll mole mola moil mule mull mullah amole