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.
radials redials ratals retails rituals radulas raddles roadless rattails ratels rodless ruddles rattles riddles reddles retiles ridleys rutiles retallies ritualize rotls retells retools rootles
medials dials redials radials dals pedalos diols audiles medals ideals vitals ediles dills aediles duals dales dahls modals pedals deils deals
radial radiale radialia radially readily redial bradawl