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.
gesso gees gies jess geese jesse geez jees jews joes joss
gesso ess cess peso gneiss messy mess loess less lasso kusso kousso guess cusso jesse jess fesse fess basso mosso ness resow chess