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.
podesta pottiest poutiest pietist peatiest pettiest
podesta doest muddiest maddest modesty testa testae lewdest bawdiest beadiest seediest baddest rudest deediest rowdiest tidiest reddest widest haddest shadiest nudest faddiest fideist saddest moodiest loudest modest gaudiest giddiest leadiest headstay headiest hoodiest deist ruddiest deadest reediest dowdiest readiest weediest oddest woodiest neediest shoddiest
pods pedes poets poods apods epodes spodes