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.
tambours tambouras tamburs tamburas tumours tamers tumors tamaris timbers timbres timorous tamaraos tumorous tamaraus tomorrows damars demurs timers dammars dammers teemers daymares dimerous timaraus dimers
tambours amours humours cumbrous reimburse rumours samburs sombrous tambouras tamburas tamburs tumours
tambour tamboura tambur tambura