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.
glossae glossa gloss glossy glassie glaze glass gloze glace glows close glassy gallows callose colossi gallous guls gals colessee goalless coulisse galliass galleass goals gleys gules cloze class kilos glees galas cloys glazy glias galls gaols kolos glues gulls calos gales guiles galeas clause calesa classy gallus galahs callous galleys gallies goalies gulleys gullies keyless