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.
seigneur seigneury signer seignior seignory signor seigniory signory signior signore signora signori skinner sickener signiori signiory scanner scunner
seigneur goner feigner seigneury signer doggoner waggoner wagoner
segni segno signa signee skein soigne soignee