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.
syllable sellable sulliable salable sailable saleable sealable salably soluble saleably solubly
billable gullable syllable jailable sellable millable bailable sailable tillable boilable foilable fellable violable quellable fillable gelable healable rulable sealable peelable willable salable killable callable reelable mailable tellable relabel fallible voluble salably pliable soluble labile gullible gullably liable label violably valuable reliable fileable sulliable alliable saleable malleable alible