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.
barrette barret burette berretta birretta barred baryte barite biretta beretta britt breed barde boart bared beret brede buret brute borate berate burred birred baryta bratty burrito berried bard bort brit bred brat bourride brut board bride borty bruit bored bread beard birdie boride bready bright burdie buried
burette syrette barrette curette rete beretta aureate laureate garotte retie rotte arete ariette fretty pretty berretta garrotte biretta pirouette birretta proette create terete ret
barre bare barrio barrow bar brr