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.
candle canoodle cantle candela condole condyle cantal kindle cantala kantele quantile kindly gauntly gonadal gondola quantal conidial conoidal gonadial quaintly quintile
bindle fondle handle bundle dandle rundle wandle windle kindle candle dindle hondle sendal roundly gentle condole condyle soundly pintle kindly indole fondly rondel roundel indol vandal noodle mantle hantle cantle needle poundal noddle canoodle nodule sandal wintle
candy caned canid canned cannot canoed cant canto canty cnida cnidae condo scandia scanned scant scanty