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.
whoever weaver weever waver wiver waiver wavery wavier woofer weigher whiffer wafer wafery
soever whoever ever over weaver louver riever liever severe rover revery reiver leaver never mover lover levier sever cover hover hoover heaver fever every reaver lever revere weever beaver shover