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.
rotis rots rotes routs riots roots rotas rotos routes reties rottes ruts roadies rods rets riotous rids rowdies rats rides redos roads rodes rates roods rites writs raids ratos writes reatas redoes retuse raitas redias radius riatas radios rodeos readies roadeos rads reds ritz
rotis tis rotas cotes cutties putties mitis geoids hotties quoits cuties photos goats motes boats coatis lots voids bawties biotas jotas nowts betise hoots pieties oots louts moieties kitties beauties motts pots foots botas quotes toits hyoids tits shotts shotes dots shoats chitties doits whities tutties dawties tots tootsy patois poetise jutties tatties fatties ties rots cooties potties ditties lotas zooids riots soots sties knouts cities tuis phots cutis coats gouts jots footsy votes patties poets laities etuis catties loids potsy gaieties mots roots oats metis bots jetties bouts botts coots iotas booties butties boots lotus notes lotos cots kotos moots hots rotos knots satis footies zitis sots quotas dauties pities doats pouts moats routs loots outs titis rotes toots reties totes touts deities tuttis wots dotes chotts shoots duties shots shouts titties yetis
roti rot droit protei oroide grotto grot aroid wrote route rout rotte roto rote rota rooty root riot retie grotty protea droid trot