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.
beams bams bemas bemuse bamboos bums bimas bombs booms bimahs bimbos biomes bombes bimboes biomass
beams teams seams reams ems iambs rems gamas hames hemes fems bams neums neems fames deems dams cames semes teems memes demes poems semis maims shawms shams shames chemos whams wames mamas tamis geums dames demos lambs mems emes kames ramus haems llamas seems amis aims gaums games camas jambs hems foams gems loams bemas amas ylems tams lamas lames jams femes lams gambs gams hams roams camos tames rams emus names nemas cams amus wamus chams pams shamas shamos memos shamus yams
beam beamy bam bamboo bema abeam