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.
rundle roundly roundel rondelle rondel roundelay rental riantly
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
rand ruinate grunt brunt brunet rynd runty runt runout ruined round randy rondo rondeau rindy rind reunite rend brunette crunode pruned