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.
tunnels tuneless toneless dynels tenails toenails townless dunghills tenailles denials
funnels runnels cannels tunnels gunnels chunnels ronnels fennels kennels channels anneals cineols pineals dynels annuls kneels knells quinelas annals hymeneals noels aneles panels snells