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.
window windowy wind windy wined whined winned wand wend whinnied waned wound wanned weaned weened wonned
endow indow reendow window nowt condo kendo menudo mondo rondo sundew tondo undo windowy
win wain twine dwine whin whine whiney whinny whiny wienie wine winey winnow wino winy gwine swine swinney twin twiny