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.
packets pickets pockets pacts peacoats picots piquets picotees pagods pagodas pectase pectize pigouts
beckets buckets tuckets jackets lockets packets pickets pockets rackets rickets rockets sockets dockets tackets tickets wickets keets skeets
packed packet paiked peaked pecked picked picket pocked pocket