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.
ionize ionise ions ins
ionize deionize lionize winze toonies tunnies denies tawnies phonies meinies beanies lunies heinies hinnies whinnies sheenies genies funnies fannies nice monies ninnies peonies ponies sonnies zanies ionise jennies anise pennies meanies nannies conies johnnies goonies lionise bonze loonies gunnies sanies minnies pinnies sonsie boonies bennies bunnies donsie tennies townies weenies wienies shannies shinnies