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.
beryl birl byrl burl broil burly brill brawl brail boral barlow boreal burley burial brawly barrel brolly barely brillo barley barilla burghal borrelia
beryl queerly cheerly seral ceorl peril pearl nerol merle merl greyly wryly herl ferly feral earl aryl dryly sheerly
bear beer beery berry bewray bier bray bury