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.
artel artal aortal artily aureately aridly
cartel artel artal aortal rotl retell ratel curtal kirtle aureately partly pertly portly seriately tartly turtle chortle mortal bordel brutely myrtle foretell hartal hurtle irately courtly curtly lyrately fardel peartly portal pretell dartle tritely whortle shortly
art aired airt aorta aortae arete arietta ariette arty aureate