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.
tersely tercel tiercel tressel triscele tarsal dorsel trysail dorsally dressily drowsily dorsal drizzly
hoarsely coarsely tersely erosely fiercely hirsel horsily crousely grisly morosely morsel parsley pursily dorsel
terse tears terce tiers torse stereos steres