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.
rotte rote wrote route rot rite root rout rate roto rota rode rete roti riot ratty retie write rooty rutty rodeo roadie roadeo red rat rut ret rod reed writ redo road read redd rood rede rude ride rato rued
lotte motte rotte latte vittae lotto fytte butte bott bootie matte cotta bootee pattie potty otto puttie guttae battue hottie wrote suttee dotty tattie tote shote knotty mott footie quote tittie settee dote cattie route vote fouette lyttae cote cottae tate boite chott jotty mote cootie motey motto note pattee potto puttee rote shott