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.
paresis pareses parses precis precise presses pyrosis precess parises process peeresses prosos prezes prises prases perses prices prizes proses purses praises prisses peruses prosses pursues pierces piracies precious prissies prossies precieuse
pheresis dieresis diuresis paresis diaeresis precis diureses heresies neurosis diereses sorosis pyrosis crisis crasis merisis virosis phoresies phereses arsis diaereses xerosis pareses
pares pars spars apres pries press pairs paras pareos pareus paries paris parrs parse pears peres pores prees presa prese preys pyres spares sparse