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.
pineal pinnal panel penal penial pinole penally pinnula pinnule pinnulae penile punily
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
piney pine pin pion spinny piny spine pinny opine pinnae apnea pone pina pinna piano pian pein pane pain epinaoi spin spinney spiny