Below are a few projects I actively maintain.
WPGraphQl Yoast SEO Plugin
This is an extension to the WPGraphQL plugin that returns Yoast SEO data.
https://github.com/ashhitch/wp-graphql-yoast-seo
WPGraphQL Send Email Plugin
One of the simple things about traditional WordPress sites is sending emails, this plugin makes it easy to do this via a simple mutation when you are using WPGraphQL.
https://github.com/ashhitch/wp-graphql-send-mail
Gatsby SEO For WpGraphQL and Yoast
Takes data from WpGraphQL and WPGraphQl Yoast SEO and provides you with Meta Tags and JSON+LD Schema in Gatsby.
https://github.com/ashhitch/gatsby-plugin-wpgraphql-seo
Use React MailChimp
It provides an easy-to-use React Hook to subscribe users to your MailChimp lists.