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.
arshin archine archon archean archaean archaeon
arshin corrosion trichina torsion derision darshan prochein prochain corrasion reshine harshen version freshen erosion erasion archine urchin