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.
tubate tubed debate tubbed towboat doubt daubed dubbed tabbed tabued dubiety tabbied tabooed
bate rebate tubate abate debate lobate niobate bat rowboat rubato beat baht byte bait aubade rabato boat rabat batt niobite bite labiate rebait rebato qubyte rubati bade sabbat towboat bute showboat
tuba tubae tub tubby tube stub stubby