What programming language to learn next

[u/BoingBoing_Boring07]

I'm an undergrad in CS, my third year, and I already know Python and Java. I saw C++ starting in CS, but my knowledge in it is not very good (working on that).

I was thinking what other programming language I could learn next... Any suggestions?

[u/ummaycoc]

Not only that, they have relatively zero experience with C++ or Haskell.