I wouldve said Bey x Jay as well if it wasn't for the great quality they always come up with.
Drake and RiRi feel more repetitive these days. I liked them as a duo when they came up with bops like Take Care or What's My Name, but Work and Too Good sound too similar imho. Hence it feels reductive.
My vote goes to Jlo/Pitbull and/or Enrique/Pitbull tho.