Take any answer you get on ANY discussion with a grain of salt. Bluntly, most people will answer "The language I use."

Instead, visit jobs websites with current positions. Look for software jobs. Make a list of the keywords (languages, frameworks, whatever) that appear in those jobs. You'll quickly make a list of what's really wanted.

Some websites aggregate that data for you -- https://www.tiobe.com/tiobe-index/ is one of the most famous -- but it's better to choose your own biases than to use the biases of any aggregator.