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.
skite skit skate skied skat skid scute skeed skeet sucked socked skidoo sicked skiddy sacked soaked socket sukkot scottie sickout skiddoo scat scot scut sect
kite skite kit kyte quite necktie requite skate skied skit dakoit