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.
broker barker burker barkier brakier breaker brickier broguery barracker bragger braggier
broker crooker phreaker forkier forgoer raker breaker fairgoer rookier barracker brakier barkier barker wrecker croakier creakier quirkier rookery larkier marker mirkier murkier perkier porkier prickier darker tracker tricker trickier worker sharker shrieker wreaker jerkier foregoer crookery corkier croaker crockery rockier rockery rocker reeker reekier cracker brickier racker burker forker freakier corker jerker larker lurker mirker murker parker porker pricker sarkier dorkier trekker trickery trucker chirker shirker shriekier
broke bark barky baroque berk birk birkie bork brake braky brock brogue brook brookie burka burke