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.
suets sets suits seats setts suedes setous suttas setose sautes suites settees sits suds suttees sots stows zetas cetes stays stoas situs stews sides sates seeds satis sties stoss sudds sudsy soots sites sades satays seduce soddies sods zits
suets duets uts ruts butes meets jetes neats gudes guts sautes pouts gutsy nutsy quits eats shutes butts cutes weets meats cuts jutes lets louts mutes mutts feats getas etas yetis sheets wheats hets zetas utes tutus putts touts teats metes duits jets dudes nudes foetus sets netts pietas fets fetas lutes bouts deets routes peats cheats haets betas gets keets huts nets diets utas seats quietus mauts puts outs heats juts beats dues fetus cutis beauts suits knouts vets ghauts leudes beets leets battues rets bets ludes dauts routs pets gouts tuts poets phuts metis newts buts setts muts tauts tets fetes quiets nuts wets whets cetes chutes shouts autos shuts yetts
suety suet set saute seat seta setae sett settee sued suede suit suite sutta suttee