PaperMod is a good hugo blog theme, but it did not support a friend link officially. So you need to do some simple customize.

Full Code

Put this shortcode into layouts/shortcodes/friends.html

Usage

Add your friends in data/friends.yml like this:

- title: "伞"
  intro: "一只咸鱼的学习记录"
  link: "https://umb.ink/"
  image: "https://avatars.githubusercontent.com/u/53655863?v=4"
- title: "HelloWorld的小博客"
  intro: "这里是一个小白的博客"
  link: "https://mzdluo123.github.io/"
  image: "https://avatars.githubusercontent.com/u/23146087?v=4"