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.
teguas tegs teggs togas teaks degas togues taigas degauss tugs tags togs tikes tacos tokes takas tucks tacks takes tykes daggas decays tikkas tokays toques tuques tekkies tax tux
teguas gas biogas fugues aquas agues bagass loggias ragas leagues megass quays rogues quags kagus segues gigues squaws gewgaws degas vagus agas quass togues yucas sagas negus bogus geegaws vogues gaes gays goas fugus quais quasi guys magus ligase reggaes vigas rugous laogais saigas quaggas skuas gags daggas gigas taigas togas yogas yugas