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.
boric baric brick bricky bork brig brock bourg barca birkie barrack brookie bark berg berk birk brag burg
toric boric choric orc uric heroic choreic ureic trick hayrick ceric prick ferric naric myrica lyric lorica crick erica daric auric hydric wrick orca pyric xeric derrick torc brick areic triac baric yttric rick
boar boor bora bore borrow bourree brie brio abri