How to draw the flags of various countries in LaTeX

Question

English:

For example say I like Korea!

can you make it?

Korean:

예를 들어 나는 한국이 좋다!

당신은 그것을 만들 수 있습니까?

Answer 1

Package worldflags is there for you :) See at https://www.ctan.org/pkg/worldflags

\documentclass{article}
\usepackage{worldflags}
\begin{document}
Here is Korea's flag:\par\medskip
\worldflag{KR}
\end{document}

Answer 2

There is another possibility using twemojis package. Being very small the flags I have added scalerel package.

\documentclass[a4paper, 12pt]{article}
\usepackage{twemojis}
\usepackage{scalerel}
\begin{document}
This is the flag of the South Korea
\scaleobj{10}{\twemoji{flag: South Korea}}
\end{document}