On Stack Overflow Jobs, you can create your own Developer Story to showcase your achievements and advance your career. One option you have when creating a Developer Story is to add tags you would like to work with or would not like to work with:

[...] The most disliked languages, by a fairly large margin, are Perl, Delphi, and VBA. They're followed by PHP, Objective-C, Coffeescript, and Ruby. On our team we're certainly happy to see that R is the least disliked programming language, relative to the number of people who liked it.

[...] Generally there is a relationship between a tag's growth and how often it's disliked. Almost everything disliked by more than 3% of stories mentioning it is shrinking in Stack Overflow traffic (except for the quite polarizing VBA, which is steady or slightly growing). And the least-disliked tags— R, Rust, Typescript and Kotlin— are all among the fast-growing tags (Typescript and Kotlin growing so quickly they had to be truncated in the plot).