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.
canoer caner canner cannery cannier gainer cunner conner coiner canary coenure coenuri goner gunner keener goonier gunnery
canoer nor pinery fennier fainer fawner miner runnier fawnier fanner gainer honour veinier conner joinery pannier near lunier sooner honer manor senior panier cannery vinier punier genera bonier lanner loner ginnier linier venery caner phonier linear bonnier vanner onery tinner weaner tonner teener winery whinnier wanier tenour weiner zanier winner sheenier shinier whiner shunner dunner diner scenery downer moonier punnier toner ruiner pawnor senora sneer dinner goonier gunnery tannery boner tenner moaner pinner deanery funner inner ginner seiner owner veneer anear pioneer finnier keener banner loaner biner liner vainer vinery canner manner snore nori finery penner funnier noir honor meaner runner finer loonier cunner beanery joiner coiner hennery panner cannier leaner junior zoner sinner mooner punner tinnier rainier pawner senor dinero saner goner gunner tanner veiner teenier minor pinier donor denier nunnery tuner tinier wanner tonier tawnier wiener whinier tenor downier weenier sunnier winier wonner shiner wennier shinnery yawner
canoe can cain cane canna cannie canny scan