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.
zeolite zlote solate solute zealot ciliate slit celt soled slate zloty slide solid soldi sealed celled slitty seeled soloed solidi ceiled slatey salute ceilidh sallied sellout sullied
iolite oolite zeolite polite lite bolide cholate elite blite solate flite polity palliate folate pelite phyllite volute filiate volte halite illite foliate oldie bolete ciliate solute violate tillite mullite hyalite lit