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.
fallibly fallible fellable fillable flabbily valuably falbala flyblew flyblow volubly fileable flabella foilable valuable violably
glibly fallibly gullibly libel alible fallible violably volubly gullably gullible pliably reliably salably solubly