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.
quiet quit quoit quite quid guide quote quate cutie quota gaiety cuddie queued gut qat cut kit qadi quod quad keto qaid cute gout guid keet gait gude kite cued
quiet nudie duet dautie suite suit suety suet piety pieta moiety cutie quoit quite quit guide gaiety diet duit