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.
signer seigneur signor seigneury signore signory signori skinner signior signora seignory skinnier sickener seignior signiory signiori seigniory squinnier scanner scunner
feigner signer gainer goner goonier gunner gunnery keener reckoner beckoner conner skinner squinnier waggoner wakener chicaner cunner scanner caner coiner cannier cannery canner quickener regainer scunner sickener canoer seigneur signor skinnier doggoner wagoner weakener chicanery
signa signee segni segno skin skinny soigne soignee