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.
graals craals grails kraals gorals goorals grilse growls crawls gruels grills corals grilles corrals gorillas carls curls guerillas garrulous carols krills carles guerrillas creels carless carrels creoles carolus curlews carrells creolise corollas careless crewless carioles cureless criollos coreless quarrels
craals graals kraals urials derails drawls pearls serails carls frails orals gnarls harls trawls chorales gharials marls grails corals goorals earls gorals crawls corrals morals ferals jarls brawls farls brails reals ooralis murals morales aerials reales burials rials rales rails borals parrals cereals serials drails trails trials wooralis chorals
graal craal goral grail grayly kraal