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.
barrens barns brens barrenness bareness barons bairns barneys boreens baroness brans brins baronies burns baronnes burans borons brawns browns bruins bourns burins brines brains boranes bournes brinies burnous burnies byrnies birianis brionies brownies beeriness brownness bronze bronzy
barrens warrens triens brens tureens treens terreens sirens sereins preens pereons wrens arenas arenes boreens phrensy terrenes careens gyrenes currans garrons greens marrons moreens mureins perrons pyrenes serenes syrens reins