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.
donna dona donne don duenna donnee tonneau done down donee downy tonne din dun dan ton den tone town toon tony dean dene dune dyne dino dine deny deni dawn tuna
donna gonia tonne donne dona zona sunnah sonny senna pinna pennia pennae penna hyponea nona anna goanna biennia conn canna henna bonny bonne pinnae sienna sunna zinnia zonae manna duenna choana