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.
goes gos goas goys gaes goos goosy goose guess goosey cooees cooeys cos kos gas koas coss guys coys kues keas cues keys gays coos koss gaze cosy kois cows kaes gauss gazoo cozey gawsy gauze guise gassy cozie gussy cosie cosey queys
foes voes hoes joes goes noes oes roes does toes woes shoes es os