Guinier's rhymes with:
mutineers, auctioneers, conventioneers, electioneers, engineers, engineers', mutineers, nears, pioneer's, pioneers, sneers, souvenirs, veneers, wagoneers
Guinier's sounds like:
gainers, gamers, genereux, generic, generics, generous, genres, genrich, giammarco, guimaraes, guinarou's, gunners