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.
blare blear bolar bleary biliary blur baler bluer boiler bawler bailor baller biller belier bolero blurry bowler bailer bulghur bullier
flare blare glare lar phylar allure clear filar claro bolar galore blear phyllary alary foliar velure glaire flair alar glary malar molar pilar polar salary solar talar willowware filaree glair hilar lyre failure clary hollowware volar velar lore lari colure collar lear liar galere lire lair laree lure gular milliare mylar pillar cellar soilure dollar tolar yellowware
belay blae blah blaw bola bylaw