100% Unsolicited — If you want followers (as a writer), take an interest in the writings of others.
Don’t do the least amount possible like highlight/recommend. Make a thoughtful comment that shows you’ve done your homework.
About 7% of those folks will reciprocate. Your conversion rate might be much higher than mine — my work is an acquired taste.
Any road, 7% is mahoosive excellent in social media land.
If an IRL celebrity, none of this applies.