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.
tent tenty tenet tenuto tenuti tentie tint dent tend tenuity taint tanto tendu teind taunt dint dunt daunt tined tondi tondo toned tuned tyned
bent vent hent gent kent lent pent rent cent scent sent dent tent went shent