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.
buckra bucker buckayro buckaroo buckeroo bicker backer biker baker beaker bugger booker bakery beakier begorah begorra buggery buggier begorrah
buckra hocker kicker pecker racker picker wrecker ocrea packer nicker sucker sacra decker mucker docker knocker lycra tacker mikra tucker lacker whacker quicker wicker licker checker cocker shocker jacker icker hacker necker fucker bicker picara rocker pucker sacker okra pakora ocker dacker sicker dicker knacker craw ducker micra ticker mocker wacker kora whicker backer chakra locker shicker bucker shucker