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.
rabbits rabbets rabats rabatos rebaits rebids rebuts robots rebates rebatos reboots rubatos rubouts rebodies rowboats
hobbits rabbits bits sabbats ebbets baits bites bitsy bitts abbots babbitts qubits habits habitus cubitus gobbets kibbitz niobites rabbets gibbets obits rebaits cubits debits
rabbit rabbity rabbet rabid crabbed grabbed drabbed drabbet