Blank Space by Taylor Swift is big, definitely not as annoying as Shake It Off.
Bang Bang by Jessie J, Ariana, and Nicki
Stay with Me - Sam Smith
Cool Kids- Echosmith
Jealous- Nick Jonas (that one might get annoying, it all depends on how long your shifts are and how loud the music is)
Something in the Water- Carrie Underwood
Boom Clap- Charli XCX
Leave The Night On- Sam Hunt
Neon Light- Blake Shelton
Feelin' It- Scotty McCreery
That's some I can think of that are kind of popular that people would be drawn to.
If I can think of anymore I will post them.