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.
brownnose browns brownness burnoose baronnes brownies brawns borons barons bronze burnous brionies baroness baronies brans burns brens barns brins brains bronzy bairns bruins bourns burins burans brines barrenness barneys barrens boranes brinies boreens burnies bournes byrnies bareness birianis beeriness