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.
coarsely carousel crousely carcel carrousel crassly crossly crusily carousal curiously cresyl grisly coryzal crazily creosol grossly grassily greasily cresol
hoarsely coarsely tersely erosely fiercely hirsel horsily crousely grisly morosely morsel parsley pursily dorsel
coarse cars cors carassow cares caress carrs carse coirs cores corse course scars