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.
lotahs lotas lots lotos loots louts litas loads lotus lyttas lottes lottos lits lats lads lets loids lades lodes leads lidos lauds lutes leets ladies lattes laddies laities luteous
lotahs cheetahs shittahs chetahs tas bettas pietas getas cottas keddahs etas litas biotas lotas botas mutase quotas pittas reatas rotas stays suttas ditas tats whidahs matsah chuddahs lyttas houdahs dahs betas teas taws taus tass katas taos iotas jotas fetas odahs howdahs bahts raitas riatas satays stoas zetas tads utas whydahs matzah pitas
lotah lota lot float zlote blotty plotty blotto gloat blot clot bloat floaty lotto lout lotte loti loot load litai flota clotty plot slot zloty