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.
furanose furans furanes farinose furnace ferns firns frons furriness frowns farinas farness frounce fairness freeness variance fieriness frenzy varnas
furanose pyranose arenose brownnose burnoose farinose marranos pruinose serranos uranous urinose