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.
abele able abelia ably aboil abolla abulia abollae aboulia
abele bel gable gabble coble cable jebel habile babble foible fable bubale bobble bible bauble babel label kibble libelee mobile nibble noble nubile obole rabble roble rubble ruble seeable dabble doable table wabble liable bole able quibble gabelle cowbell cobble jubile hobble viable blew feeble bubble bale belie bell belle bile gobble labile rouble tubule double dibble suable sable rubel rebel libel pebble obeli nubble nobble nebule lobule wobble