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.
hooray hoorah hora hoary horah hurray hoar hoer hour hairy harry herry houri hurry hurrah her
foray hooray moray ray ora mora lorry sorry pray hoary lory hurray cowry moory bora orra hora array dory dowry tora tory worry sora fray kora hoorah bewray morae loury coria gray cory korai bray noria fora horah moira gory deray doura dray torah tray chorea