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.
keenly queenly kennel gainly cannily quenelle
keenly queenly venal henley inlay inly cannily gainly nelly lanely loonily lienal meanly onlay penal rainily sanely sunnily tawnily tinnily wanly mainly phenyl vainly manly funnily finely enol bonnily phonily newly phenol leanly hymenal lonely moonily only punily renal sonly zanily tinily unlay shinily
keen ken keno akene skeen skene