Feather Icons

Refer following links for usage:

Type URL
Plugin Link https://github.com/AT-UI/feather-font
Template Page path-to-apex-page/icons-feather.html

Font Awesome

Refer following links for usage:

Type URL
Plugin Link https://fontawesome.com/
Template Page path-to-apex-page/icons-font-awesome.html

Simple Line Icons

Refer following links for usage:

Type URL
Plugin Link https://github.com/simplelineicons/simplelineicons.github.io/
Template Page path-to-apex-page/icons-simple-line.html