Font Stacks Per Language With :lang()
Switches to fonts that cover the script of the page or block language, for example Arabic, Hebrew, Japanese, Chinese, Korean, Thai and Hindi, while keeping your theme font for Latin text.
Snippet Library
Multilingual snippets for WordPress
Snippets for multilingual sites: language switchers, translated strings and per-language behavior with WPML, Polylang and similar plugins. For sites that serve readers in more than one language.