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.
bourgs burgs burgoos brigs brags bergs borks burqas burkas burkes brogues baroques barks berks borax birks breeks brooks bricks breaks brocks brakes barcas barques berakes birkies bureaux barracks brookies
bourgs burgs argus rugs rigs regs rags frugs bergs grigs cargos murks prigs rerigs sorgos dregs teargas trogs turks largos brags brigs lurks ergs erugos frags frigs frogs virgas aerugos grogs crags pargos progs sargos drags drugs trigs trugs shrugs
bourg boric bork burg burgoo burka burke burqa