3. Post your official news on a blog/website with an RSS feed, not only on your Facebook page (effort = 0 if website already exists
4. Reply also to your emails (effort = maybe too much …)
At least, it pays some respect to those who don't want to use Facebook solutions.
The social network of the future: No ads, no corporate surveillance, ethical design, and decentralization! Own your data with Mastodon!