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.
ferly fierily feral ferule frilly freely ferula ferlie verily ferial ferrel fairly furl furrily farl frailly ferulae ferrule farle frail frill virally virelay virl
ferly sheerly cheerly queerly charley cruelly wearily barley barely airily wryly sorrily rely burly burley verily herl hourly hurly merl beryl yarely rarely truly earl knurly nerol parley pearly marly relay wirily merrily surely dearly dourly dryly poorly ruly seral freely virelay leerily eerily fairly feral fierily purely sourly whirly early hurley girly curly greyly gorily merle merely gnarly furrily aerily tearily drily direly surly sorely warily hoarily ceorl peril pearl parlay nearly charily cheerily yearly
fer faerie faery fear feirie fere feria feriae ferry fiery