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.
rifts rafts refits rights rivets refutes wrights righties righteous revets refeeds revotes raphides
gifts shifts sifts lifts rifts hafts uveitis tuffets qiviuts defats lefts cheviots haffits soviets hefts haffets refits ophites mephitis softas soffits wefts whiffets softs fiats shafts fets fats evites rafts muftis lofts efts buffets fits davits befits tofts tufts wafts shivitis
rift raft reft reified riffed grift drift drifty trifid