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.
bruiter brighter barter broider braider barrater broodier brattier broidery birder border broader breeder brooder bordure boarder barrator barratry barretor barretry bourtree bordereau
bruiter fruiter triter groutier reutter rioter ritter router writer fritter fruitier hurter courter cowriter critter curter gritter grouter rewriter troutier
bruit brit brut barite britt brute