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.
trendy trend turned trined torrent tornado trained trinity triunity durned drownd truant droned darned tyrant drained drowned ternate turnout
trendy randy rend rindy brandy friend careened greened muraenid preened trend yearend
tarn tern terne torn tranny treen triene triennia trine trona trone tureen turn strewn