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.
phonal phonily phenol phenyl final venal vinal veinal venial finale finial faunal vineal finally venally faunally venially
phonal zonal zoonal tonal nonyl annal nail nala anal veinal anneal annual only penial pinnal vineal venial menial renal hymenal sonly lienal banal denial tineal manual hymenial penal biennale canal biannual vinal genial finale final finial binal biennial faunal tenail toenail nounal hymnal pineal hymeneal renail lineal snail cuneal xenial venal unnail
phon phone phoney phono phony aphonia