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.
bergs berks brigs burgs brags bourgs burgoos berakes barks borks birks brooks burkes brakes breaks barcas breeks brocks burkas bricks burqas barques birkies brogues baroques barracks brookies brux
bergs ergs argus rugs rigs regs rags virgas berks cargos grogs gregos pargos prigs rerigs sorgos drags drugs trigs trugs shrugs mercs bourgs brags merks burgs frags frigs frogs frugs jerks brigs crags largos grigs perks progs sargos zerks dregs teargas trogs choregus yerks
berg berake berk brag braggy brig brogue burg burgoo