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.
quellable gullable callable gullably gullible killable gullibly glabellae glabella
billable millable gullable quellable fillable tellable willable callable syllable killable fellable tillable sellable mailable sailable liable reliable labile saleable bailable rulable boilable healable violable pliable sealable alliable salable foilable peelable malleable gelable fileable reelable gullible gullably sulliable fallible valuable jailable