I am currently advocating the following technologies.
Angular was a must to use Ionic, it started with AngularJS and then moving to Angular 2+. Gradually I accepted challenges to crate non Ionic Web Apps using Angular including Admin Panels and Web Apps.
And finally docker. Some people want to move all they have into containers while others are absolutely afraid of it. Personally I use docker for development and production and want people to embrace its simplicity also.