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.
mureins murines murrains mourns mirins merinos moreens morions marinas marines moraines moreness miriness morns morrions merriness morons maroons marrons marranos
reins mureins sereins rins grins marinas neurines pereions brens murines arenas saurians brains brines burins bruins heroins carinas grains trines treens purines morrions chorions boreens warrens turions merinos moreens pyrenes dourines brins serines phrensy sirens durians taurines terreens terrines terrenes marines rinse arenes morions jarinas mirins virions rains parians trains ruins carrions careens wrens greens gyrenes groins barrens triens murrains farinas terrains durions drains serins preens serenes syrens purins sarins prions pereons tureens urines sciurines chorines shrines