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.
holloaing holloing hollaing hilloaing hulloaing hollooing halloaing halloing hulloing hilloing helloing holing hallooing hullooing haloing helling hilling howling hulling haling hailing hauling healing heeling heiling
halloaing hilloaing hulloaing holloaing soloing nielloing coaling hulloing holloing hollaing hilloing helloing haloing hallooing folioing foaling looing hollooing halloing hullooing goaling siloing shoaling lang ling long