I'm always proud of the UK government web services. A lot of work is done to make high quality accessible tools to explain: the law, regulations, health (nhs website), travel guidelines, tax services, etc.
Related to this post, the EU guidelines for inclusive language was a nice read for me.
https://www.scribd.com/document/543481333/Woke-commission-eu...
(The tables on page 10, 14, 17, etc, being for me the main point of interest)