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.
cenotes cents centas centos scents senates snots sienites scientize scends snouts snoots sennets sennits sanities sinuates sends snits saints santos snoods sondes suints synods sonatas sonnets sundaes
notes denotes connotes cenotes keynotes reunites pontes snots snouts mannites kentes pintoes sienites coonties nowts nodes snoots gentes gahnites nites quintes gunites antes shanties chanties unties undoes dynodes dunites senates knots banties bounties enates finites hyphenates counties rainouts minutes kainites montes pinites runouts phonates giantess contes annates condoes lenites knouts nates phenates countess mantes dainties aunties panties ruinates shanteys chanteys unites tannates dunnites donates rentes mentees punties pointes pinots penates neonates anodes yentes
cenote cent centai cento centu scent