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.
tumuli tumble tamal dumbly tamale tamely timbal timely tombal tymbal tambala timbale tombola tombolo dumbbell tomalley
famuli fumuli hamuli cumuli limuli tumuli maul mule mull hamaul gemmule