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.
wonner winner wanner wennier whinnier wanier weaner weiner whiner wiener winery winier weenier whinier
banner inner funner fanner sinner punner manner tinner wanner tonner ginner dinner vanner cunner canner shunner conner tanner panner pinner lanner penner winner wonner tenner runner gunner dunner veinier runnier goner cannery punnier caner finer fawnier denier joiner pinier zoner diner keener teener gainer nunnery sneer tannery canoer funnier punier pioneer anear venery lunier wanier vainer dinero shinier sheenier vinery winery whinnier whiner weiner weaner honer toner loner tonier mooner beanery pawner goonier genera pinery seiner saner fawner loaner miner vinier coiner hennery moaner near sooner onery phonier sunnier liner cannier tinier linier bonnier zanier biner owner leaner finery gunnery meaner rainier bonier panier loonier fainer ruiner moonier ginnier teenier veiner linear downer downier joinery scenery veneer fennier finnier boner shinnery tawnier tinnier tuner pannier weenier wennier whinier wiener winier deanery shiner yawner