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.
lensed linseed lionised lanced leanest lionized liniest luniest lanosity looniest
lensed sensed rinsed tensed censed mensed finessed pounced minced lionised ensued fenced ponced ionised onset unissued jonesed jounced linseed winced unset unused moonset nosed quinsied lanced danced synced nuanced noosed moonseed sunset inset zinced aniseed bounced jaunced noised chanced
lense lens leanness leans lenes lenis lenos leones liens lins linsey blennies flense glens