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.
beetle bedel betel butle battle beadle bedell bottle botel butyl boatel boodle buddle beadily battalia buddleia
beetle betel little metal kittle pottle petal retile cuttle ketol vittle setal rutile stale foetal cattle fetal stelae bottle shuttle stile footle style butle tattle fettle motley tittle utile mettle wetly mutule whittle nettle battle dele stele outlie meetly metol quietly rattle pettle rootle guttle kettle cadelle settle citole steelie tale cuittle tule tele mottle chaetal needle wheedle motile wattle tootle telae tole title tile dottle futile stole hyetal
beet bet beat bedew beedi beta betta abet