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.
duets dauts diets deets dudes duits duties tets duds dauties dits tuts deities dots duteous dates tauts ditas datos tides deads deeds tutus touts dotes doats doits duads ditsy dites teats dawts diodes didies didoes tuttis tutees dittos deduce todies dattos tidies dadoes dodoes dawties tedious teddies toddies deutzia daddies doodies toadies dowdies tutties ditties dads ditz tads tats teds tits tods tots
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
dueted duet duetted daut dautie deet deity diet dude duit duty dauted dieted duded