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.
varnas farinas wyverns virions farness fairness farinose variance ferns firns frons frowns furans furanes furnace phrensy freeness furanose
varnas pyrans coronas cairns tronas brens currans rennase syrens kernes girons grans barons burans burns farinas hyperons corns kirns barrens brans bournes wyverns querns firns guaranas carns herons warns yarns churns uranias terns diurons sirens reruns puranas piranas neurons furans jarinas sharns tarns sarins pornos morons bourns liernes hernias marinas irons mirins ernes borons airns horns erns frons learns harianas wrens ruanas arenas korunas cornus perrons ferns earns bairns reearns grins gyrons kerns darns rins garrons brins turns carinas curns karns burins corneas journos morns girns marrons herns lorans runs mourns porns serins ternes shorans barns warrens ornis pirns purins sarans sorns durns trans urns shairns yearns