How to install a program on Debian that is not in the standard repository?

Question

Debian

For example, I can’t install the wget program, I write apt-get install wget, in response I get the message "No candidate for installation was found for the package" wget "".
As I understand it, the connected repositories simply do not have this utility?
Can you please tell me how to get a repository in which there is this utility?

This is what source.list looks like:

Answer 1

How is it not? Show output:
apt search wget