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.
route rote rout wrote rotte rut rot rued root rite rude roti roto rode rete rota riot rate write rutty retie rodeo rooty roadie roadeo red rat rod ret rato writ read rede road redo reed ride rudd rood redd
route ute out tutee cootie knout gouty quite bootie bout bute cutie lute haute buteo butte motte rotte mote footie vote saute dautie tote chute shout pouty lotte bootee rout cote note mute gout quate cute coude boite cutey jute meoued quote shote pout motey rote miaoued wrote suite dote tout lutea lout shute