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