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.
tetanies tetanise tetanize dittanies tetanus titanias titaness titans teutonize detainees detains detinues tautness titanous deadness dottiness tattiness dedans deadens tautens duotones tidiness doughtiness
botanies litanies tetanies ratanies dittanies butanes titaness betonies tetanise soutanes tunnies mutinies redenies danios denies tawnies phytanes townies tennies neotenies atonies cetanes stanes botanise botanize betaines tetanize toonies titanias