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.
wicker whicker wacker wackier whacker waker whackier weaker wiggery wiggier wagger waggery
backer decker quicker licker fucker ticker racker bucker sucker knacker wicker cocker necker shocker packer shicker dicker knocker icker whicker sacker sicker picker nicker locker mocker pucker ocker rocker docker checker wrecker bicker dacker jacker tucker ducker tacker hacker wacker kicker shucker mucker whacker hocker pecker lacker keir choker reekier leaker skier weaker rookery ickier meeker geekier gawker quaker duiker diker kier fakeer taker quackery pawkier cakier gawkier biker quackier siker dickier yuckier cockier shikker duckier hooker lakier waker toker chukker cooker booker cookery saker muckier wreaker hawker liker pickeer raker suckier seeker buckra baker mockery peckier laker tackier beaker hokier soaker poker knackery rookier daiker rockery leakier pokier wackier reeker oakier kickier whackier jokier hookier quakier fakery pockier piker shakier maker faker peakier beakier kookier luckier bakery hiker rockier looker pickier puckery cheekier chokier shaker joker yakker yukkier