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.
brillo brill braille barilla broil brail burial barlow brolly byrl birl burl brawl beryl birle burly boral barely barley barrel boreal brawly burley brawlie burghal borrelia
brillo zorillo shrill hydrilla frilly krill rille rouille barilla braille brill rill frailly perilla frill gorilla grill grille guerilla guerrilla morello prill zorille criollo zorilla drill trill shrilly