https://insights.stackoverflow.com/survey/2020#top-paying-technologies  is the link.  Honestly, though, the salary numbers seem so wrong that I find it hard to take them seriously.  I imagine what's going on here is that salaries vary mainly by location.  Technologies that have not been adopted in regions where salaries are lower will show up at the top of this list.  It says nothing about how salaries in any given area will compare.  Interpreting correlations like this is tricky.