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.
overed overdo offered overate overdue overeat overt overrate override overrode overrude
beavered covered niffered havered cyphered offered overed sphered quavered louvered ciphered goffered wafered revered veered syphered shivered laveered fevered reoffered hovered suffered levered differed livered gauffered buffered wavered severed hoovered chaffered quivered coffered refried favored savored louvred covaried ferried foredo favoured liveried chauffeured leveret fired fared referred shivareed refired freed chivaried shepherd devoured deferred faired overdo averred varied savoured feared afeard chivareed coiffured fried refereed safaried furred afeared