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.
ribier ribbier ribber rubier robber rubber robbery rubbery rebar rebore rebury
babier webbier rubier chubbier cobbier bier knubbier knobbier tubbier shabbier ribier daubier nobbier nubbier gabbier ribbier jobbery lobber goober biro hobber caber libber sobber gabber robbery brie jobber rubber jabiru rubbery dabber daubery dibber cyber cobber tuber suber weber sober tubber giber saber dauber bibber jiber fiber liber bobbery bibbery fabber beer bobber fibber ribber lubber robber mobber birr bear cuber gibber jabber jibber dobber sabir dubber taber nabber yabber
rib ribby bribe bribee crib oribi drib tribe urbia