Answer: hailers

AnswerCrossword Clue
HAILERSWelcomers.
HAILERSGreeters.
HAILERSPeople looking for taxis.
HAILERSCab callers
hailersto greet
hailersHAILER, one who greets (to address courteously on meeting)
hailerscall or greeting
hailersto call out or signal to