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.
whelped walloped
kelped whelped yelped helped gulped taliped shlepped cleped palped millepede leaped loped aliped beleaped bleeped eloped pulped filliped cheliped ycleped lolloped milleped milliped polyped sliped dolloped walloped galoped sloped galloped