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.
usance usaunce usneas
feasance seance usance nuisance naissance puissance issuance quiescence nascence tisanes sanes science since nescience licence licencee bioscience essence geoscience lucence usaunce