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.
zeal zoeal seal sel sal cel sail zill sale sall seel sell ceil saul cell ceili cella celli cello sally seely selah selle
feal veal wheal weal teal deal zoeal zeal seal real peal meal leal heal sheal al el