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.
seekers skiers sakers suckers soakers sackers skerries skirrs screes seggars secures saggers scars scores sucres scours scaurs scries screws scares sugars saggars secrecy soucars sowcars squares squires
reekers seekers soakers peckers knickers gawkers bakers bickers hookers pickers backers jackers makers kiers lakers quakers deckers pokers lickers ockers neckers muckers lockers hikers queers shuckers shikkers tickers shakers chokers duckers wickers whackers tuckers dackers bookers tackers wreakers sackers rackers dikers queuers bikers cockers cookers fakers beakers nickers kickers lackers hockers dickers leakers knackers fakeers mockers pikers jokers pickeers buckers sakers wreckers packers lookers knockers suckers likers keirs rockers daikers hackers rakers dockers ickers hawkers fuckers takers skiers wakers puckers whickers checkers duikers chukkers shickers tokers shockers yakkers