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.
poorly parlay purely pearly parley purl parol prill prole pearl parle peril prowl parral parrel prelaw parole pyrola pyrrol parolee payroll perilla puerile purlieu pyrrole
poorly gooral hurly hoarily whirly surly loral burly early fairly dearly narrowly coral gnarly oral burley hourly furrily pearly aerily purely rely charley yarely cheerly wirily warily sorely ferly sourly ceorl parlay sheerly trolly eerily dourly queerly drolly merely dryly moral gorily growly roily morel brolly verily hurley boral orle knurly curly nearly ruly goral airily barley marly zoril whorl horal girly barely direly rarely parley tearily merrily drooly leerily drily wryly truly shorl sorel cheerily surely fierily sorrily wearily charily choral yearly
poor poori pore pour aporia spoor spore