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.
brickier barkier brakier barker broker burker barracker breaker braggier bragger broguery
brickier trickier prickier rockier trucker tricker cracker trickery jerkier quirkier freakier sarkier murkier forkier pricker perkier mirkier tracker reekier corkier croakier larkier barkier porkier wrecker rookier rockery rocker dorkier racker creakier crockery barracker brakier shriekier
brick bricky baric boric brock