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.
signora signor signori signory signore signior seignior seignory signiory signiori signer seigniory seigneur seigneury skinner sickener skinnier squinnier scanner scunner
pignora signora ignore peignoir seignior seignory signior signor signore signori signory
segno signa signee soigne soignee