I'd start with rust so that you get good habits wrt proper use of stack vs heap memory.

But then again it really depends what your goals are. I usually suggest that people don't worry too much about what the best language to learn is, it's like learning Latin because "it will help me learn English".

Identify a problem you want to solve, and choose whatever language looks like it offers the easiest and fastest way to solve it.

Any language is better than losing interest because you don't have a reason to continue.