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.
quillaias quillais quills quells quolls quails cullis gullies cullies killies cullays queleas galliass glias kills culls gulls guiles callas collies gulleys kellies gallies galleass guls calls kails gules galas galls claws kilos kolas clays glass class cauls coils colas
quillai quillaia quill squill squilla squillae