With Wix Blog, you’re not only sharing your voice with the world, you can also grow an active online community. That’s why the Wix blog comes with a built-in members area - so that readers can easily sign easily up to become members of your blog.
Head to your Member’s Page
Search for the member you want to make a writer
Click on the member’s profile
Click the 3 dot icon ( ⠇) on the Follow button
Select Set as Writer