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.
grilles grills gorillas krills grails grilse guerillas guerrillas carioles criollos carrioles carles gruels growls gorals graals creoles carless goorals curlews crewless carrells cureless careless coreless corollas carls curls garrulous crawls creels carols corals craals kraals carolus carrels corrals
rilles rouilles grilles brailles zorilles guerrillas frills morelles varioles perillas girolles barillas zorillas hydrillas birles drills trailless trolleys weariless darioles trills carioles brills krills orioles gorillas carrioles brollies rallies grills zorillos brillos rills guerillas riles prills trollies shrills
grill grille gorilla gorily grail krill