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.
shrills shorls shoreless churls chorals
rills prills grills trills shrills brills krills drills frills urials trials hydrillas riels brails rolls riles grilse perils serials triols perillas rials gharials broils carrells oriels guerillas rilles trails trolls rouilles payrolls aerials barillas rails burials frails drails brailles guerrillas zorilles roils drolls grails grilles brillos serails zorillas zorillos derails ariels zorils gorillas arils rerolls trulls