How to practice assembler?

Question

assembler

I know the C language, now I want to start learning assembler, I haven’t chosen which one yet, but when I learn it, I will need practice, and I don’t know what I will need to write in it

Answer 1

Now I want to start learning assembler

There is no need to make a big bet on assembler - something like assembler learned, and began to code better, became a zen programmer. Firstly, the assembler is very narrowly focused - and it means that it works very little in solving business problems (that is, 98% of the inhabitants are not needed).

but when I learn it, I will need practice

No, firstly, something big is very rarely written in assembly language (unless you are a fan of creating wild crutches and BDSM entertainment, which 99% will be unsuccessful).

I know C language

I would not be so sure, I have a friend who has been in this field since 2002, and even he would not be so unfounded in his sayings.
Better put more emphasis on in-depth study of C \ C ++, and this will give more profit.

and I don't know what to write on it

OS loader? Some kind of driver that was written for XP, but is not supported in Win10?

Answer 2

Take a piece of iron - ATMega/ATTiny, ESP8622, STM32F103, etc.
There is a lot of scope for using Assembler