A: Hey, Thorti! Thank you for your question.

Currently, we have: WPML and Polylang support.

You can use WPML the same as the Polylang plugin to optimize for multilingual websites. Check out this tutorial for more information: https://howto.squirrly.co/wordpress-seo/compatibility-with-polylang-plugin/

Furthermore, TranslatePress has been another plugin that's been requested, so we've added it to our Roadmap (Roadmap can be accessed here: https://trello.com/b/eIk8oyEx/next-features)

Hope this helps but let me know if you need more information. :)