All depends on what and where you want to work.

Facebook has one of the biggest haskell code bases out there running its rules engine. C++ is still massive in game dev. C# and Java are the go to for large company back ends also SQL either SQL Server or Oracle and that will not change.

Also there is Big Money in COBOL as it still runs huge legacy systems such as banking etc. COBAL people are rare so you could almost be given a blank cheque if you can suffer the language lol