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.
redias reds readies redes reads reeds redds redos radios redoes radius riatas readds reties reatas raitas rowdies roadies rods rats rads rets rids rites roods rates roads rodes rotes ratos rides rotas rotis riots rudds raids writs reduce retuse rodeos rottes routes writes riotous roadeos
medias redias dis dies dais howdies gadis cuddies boodies houdahs medius codas diss daws paddies days naiads caddis goodies keddahs iodise paydays adios muddies middies qadis noddies tidies chuddahs dowdies widdies whidahs judas wadies todies heydays todays sadis radios foodies dits raitas daddies didies ladies soddies odahs rowdies maydays eddies biddies kiddies nadas giddies radius dadas badass cedis teddies bidis ditas wadis ideas toddies laddies bawdies howdahs fuddies dahs beedies hoodies gaudies audios codeias kadis woodies gaddis fiats pitas padis odas nudies neddies midis cadis bodies baddies caddies litas whydahs buddies readies middays roadies sodas dads doodies toadies waddies shoddies
redia rediae red uredo oreide cred brede radii radio read readd ready redd rede rued bred redo ired reed credo reedy uredia retie ureide