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.
raid rad rid road ride read radii radio wried readd raita ready roadie roadeo rod rat red reed rota redd writ rode rood rite rato redo rate roti riot rede rude rudd rued redia rhyta retie reedy reata ruddy rowdy rodeo riata ratty write
aid caid qaid laid maid paid raid said ad id