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.
vinyls vinals veinless veinules finals finalis finales finials venules phenyls finless venulose venulous finalise vanillas fennels funnels phenols finalize
vinyls phenyls nonyls funnels channels finals dynels quinols ronnels cannels fennels canals vinals phenols annals enols anlas anils nils kennels hymnals annuls gunnels panels runnels tunnels chunnels
vinyl vainly veinal veinule vinal vineal