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.
cuisine cosine cousin cassine casein casini casino cosign caisson cassene cassina cassino quassin cassena
cuisine sine tisane rusine raisiny raisin puisne piscine oscine lysine cosine cassine fascine eosine sinew seine seisin hyoscine sin