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.
tamaris tamaraus tamaraos damars tamers dammars tamburs tambours tamburas timaraus daymares tambouras timers tumors dammers teemers timbers timbres tumours timorous tumorous tomorrows demurs dimers dimmers
tamaris mars chimars dammars ambaries daymares damars summaries mairs maras mares marse summarise ambaris lumbars embars mimbars cymars samaras sambars simars smears maars shmears
tamarao tamarau tamari damar tamer timarau