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.
deaerates derates derats darts drats hydrates derides dirties treaties diorites tarts dirts tortes tarots dreads traits droits treats dorados teredos terrets territs torts trets trots
berates aerates derates deaerates cerates rates treaties derats phorates grates prates variates yperites pirates narrates laureates borates seriates crates verites cerites hydrates orates karates ferrates gyrates serrates muriates carates curates creates certes urates rats