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.
tautens tautness tattiness titans detains dudeens tetanus deadens titanias tetanies detinues titanous titaness detainees dittanies dottiness teutonize dedans
tautens tens rattens sateens stenos fattens butenes boutons tense lattens retenes teens luteins neatens pattens potteens ratteens wheatens battens putons moutons quietens poteens patens mutons loudens latens mittens heightens lateens kittens ketenes cutins steins rutins catenas futons whitens