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.
whirled whorled world
birled tirled dirled whirled trilled furled feruled caroled fairlead byrled burled ferreled brailled pearled cheerled whorled barreled knurled purled muraled brailed ariled broiled ferruled grilled gnarled perilled parled riled laureled drilled quarreled curled frilled hurled reoiled marled cheerlead ruled railed roiled periled paroled prilled nurled derailed trailed rilled shrilled
whirl whirly whorl wirily swirl swirly twirl twirly