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.
tamburas tambouras tamburs tambours tamaraos tamaraus tamers timbres tumours tamaris timbers timaraus demurs damars tumors timers dammars dammers teemers daymares timorous tumorous tomorrows dimers
tamburas mbiras muras murras reimburse samburs samurais tambouras tambours tamburs umbras chambrays
tambur tambura tambour tamboura