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.
mourns morns morons morions murines moreens mureins morrions murrains moreness moraines mirins maroons marrons marinas marines miriness merriness merinos marranos
bourns mourns curns burns urns durns churns turns kernes wrens ferns earns horns grans ruins brins ornis pornos herns girns sarins rins irons currans kerns rouens gyrons morns runs wyverns frons yarns sharns sorns warns marrons trans ternes barns perrons reearns prunes barrens runes cairns bairns grins serins garrons kirns purins corns mirins morons herons syrens furans ernes journos burans learns girons pirns carns lorans korunas porns brans karns hyperons varnas airns firns sarans darns brens querns prunus bournes liernes cornus erns borons sirens bruins burins barons reruns neurons diurons tarns terns triunes pyrans warrens shairns shorans yearns
mourn moraine moreen morion morn moron morrion murein murine murrain murrine amorini amorino