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.
peed ped pied pooed hyped puttee pattee hypoed pud pet pod pad paid pate poet pood padi peat paddy peaty petti petto petty pieta piety podia
feed heed geed jeed cooeed meed kneed need peed reed seed deed teed weed ed