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.
wrassle rassle rissole reassail resale resile resole roselle racily resail reseal resell rosily rosolio
rassle wrassle hassle passel tassel sessile scissile rissole pussley measle missile hassel vassal fissile bassly aisle tussle
wrasse brass brassie brassy frass crass grass grassy trass ras