If you want to study one that is in a somewhat different vein, TCL will give you a broader viewpoint. Its syntax tends somewhat towards the LISP end of the spectrum.
I still think that Classic Visual Basic 6 is the best tool to make a small app with a user friendly GUI that has a few buttons and you can distribute to end users and they can just click, be happy and think you are some kind of genius.
Anyway, it's kind of dead :( , so I don't recomend to start with it now.
I'm still amazed how much I could do with a dozen of lines of PHP and Javascript, and make a simple web app, that I can deploy anywhere and my colegues be happy because I solver our problem.
(I never used Pascal (well, perhaps a hundred of LOC in total), but the old Borland Pascal compiler was extremly fast and good when it was released.)
It's not my area, so you may look a better opinion, but i suggest https://en.wikipedia.org/wiki/Node.js and https://en.wikipedia.org/wiki/TypeScript