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.
hypes hyps hypos pes pees peas pies pehs pews peso peise pease poesy pas pus psi pis pice puce pows pose poos pois piso piss pace pias pays paws pass pase puss
hypes pes yes wyles hypos hyps peas pees pehs peso pews pies wytes wyes yeas yews
hype hyp hypo hope type typey yipe