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