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.
befouls befools befalls befleas beefalos beefless boffolas beefaloes bevels biofuels buffalos biophilias baffles
fouls befouls foals foils fools fowls fuels fulls ghouls befools biofuels boffolas peafowls refuels seafowls defuels