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.
visiter visitor vaster feistier faster fester foster vestry feaster vastier vesture fustier
visiter suiter quester toastier faster mastery citer diester muster keester missteer wrester austere vastier coaster rester luster mystery aster sitter stere jester nester visitor ghostier masseter foster mistier yeastier chestier waster testier dustier zoster sister royster roister reciter wester heister tastier leister zester roster poster steer oyster juster pastier gaster pestier keyster feistier booster caster fustier sitar nastier hoister buster easter boaster mustier lister resider vaster fester bister rustier meister gustier moister diaster baster master ester toaster kiester lustier mister feaster laster keister pester coster paster jouster ouster bustier piaster rooster xyster taster shyster hastier wastery raster roaster rouster wristier zestier duster tester waister chaster yester