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.
frilly frailly frill furrily fierily ferly frail freely verily ferial fairly virally furl farl feral farle ferlie ferrel ferula ferule virile ferrule ferulae gharial variola variole virelay
frailly frilly shrilly gyrally grill aerially eerily fierily frill brill barilla areally furrily virally girly jurally gorilla guerilla merrily brillo neurally perilla rurally sorrily zorilla zorillo drily hydrilla trill trolly wearily wirily cheerily shrill brolly krill hoarily morally verily aurally aerily fairly riley rill rille roily rouille really airily grille gorily leerily orally braille prill serially surreally zorille drill drolly tearily trolley warily whirly charily chorally guerrilla cruelly rally