I'm primarily a JavaScript developer (jQuery, React, Angular, et. al + Node) as that's my first choice and greatest depth of knowledge.
I'm also very knowledgeable about PHP but prefer to use classic OOP patterns with it hence my reprehension for WordPress.
I use ASP.Net and JavaEE at work. Kinda more circumstantial than anything, ie working with third party software. I actively choose not to seek further work with these tools because I don't enjoy using them.
I wouldn't mind building web services with .Net or Java, though. I imagine those jobs are probably not very prevalent but I was only on Upwork for a short time.
I made some money but it seemed most things tagged JavaScript or PHP were either design work or WordPress plugins.
This thread inspired me to sign back up and raise my rate to something more realistic IRL ~ $30-35/hr.