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.
pursuit purist prosit purest pursued prost porosity parasite prest prussiate presto pursed priest preset preside poorest prostie presidia persuade presidio praesidia periostea prised priced parsed prized prosed peracid perused praised pressed prissed prosody
pursuit resit varsity hirsute prosit
pursue purs pours puris purrs purse pursy spurs