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.
felt fealty flit flat fellate float field felid filet fluty fluyt fault fleet flota flout floaty fillet faulty felled velate fueled flauta fuelled veloute fallout fled velleity volt fold veld valet volte vault flute flite flood filed flyte fluid fauld flied volta flued volti
belt felt gelt kelt melt knelt pelt celt delt welt
fell fella fellah felloe fellow felly