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.
tegular declare decolor tackler tickler toggler
jugular ligular tegular regular gular locular piacular peculiar ocular macular jocular vacuolar aglare glary glare glair secular facular