Pfizer's rhymes with:
adviser's, advisers, advisers', advisors, geysers, incisors, kaiser's, misers, supervisor's, supervisors, visors
Pfizer's sounds like:
pacers, packagers, packers, pagers, papageorge, passers, pekarek, pickers, piecework, piekarski, piepgras, pikers, pisarek, pisarski, pizzerias, poachers, pokorski, psoriasis, pushers, puskarich