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.
deletion delation dealation delusion dilation dilution dulciana
deletion vallation dilution foliation dealation solation relation palliation collation gelation illation halation volution volition violation valuation lesion lotion filiation fellation elution elation alation coalition lallation pollution ciliation solution delation dilation chelation