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.
cuneal canal cannel gunnel quinela canella quiniela quenelle quinella canula kennel quinol canola cannily cannoli cannula canulae queenly canaille cannulae
anneal hymeneal vineal tineal cuneal pineal lineal funnel binal venal pinnal finial biennale gunnel biennial fennel phonal tonal veinal annal final menial hymnal lienal panel knell venial banal kneel noel lonely genial nala anal anele quinela channel cannel unnail vinal manual snell zonal sanely renal hymenal biannual denial faunal penial annual toenail runnel finely tenail hymenial tunnel nail nounal penal lanely renail ronnel cineol snail xenial zoonal dynel kennel finale canal chunnel