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.
glassie glass glassy glossae glace glias gloss galliass galleass glaze class galas glossa glossy clause galahs galeas classy gallies gullies colossi goalies guls gals goalless colessee coulisse glazy close gales galls glees kolas colas claws gules gleys gloze glows clays goals glues gulls gaols koalas callas gallus coalas colies guiles galleys gallous callose gulleys coolies cullays cullies kellies keyless killies collies gallows queleas
lassie glassie lassi falsie flossie paillasse palliasse