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.
waifs waffs wifes waives wavies whiffs wifeys waffies waves wives woofs waveys weaves weighs whoofs
kaifs naifs waifs ifs seifs rifs kiefs reifs kafs knifes pavis cuifs tiffs naffs gaffs miffs loafs quiffs diffs caffs wifes chaffs sheafs neifs leafs quaffs mavis biffs safes riffs raffs oafs cafes fiefs coifs fifes haafs kifs jiffs baffs daffs difs waffs whiffs chafes chiefs yaffs
waif waff waffie waive whiff wife wifey