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.
feline felon felony valine flan flown fallen violin villain villein violone phelonia villainy
line beeline aline bowline towline feline moline byline milline cline ralline choline kaoline jawline reline cauline guyline valine maline hyaline saline lin realign blini align pillion jillion cullion blin loin aeolian clone lino hellion lune silane ulnae bullion mullein slain mullion malign billion kaolin delaine liane tolane lane villain liney solion xylene million zillion aloin gallein alone lain alien olein linn liny lien violone colone plane violin alane villein moulin eloin oleine blain colin kalian elain paulin talion eolian salina plain chalone lion hyalin lone yeelin
feal feel fell fella fellah felloe fellow felly feyly folia folio fuel