For users you’re having trouble driving engagement and finding content to interact with, maybe this will help. 

Go to the profile of someone you’re interested in and click on the three dots. Then add their feed to your homepage.  From your home page you switch thru streams of content. It’s like flipping thru channels. 

You can do this for an infinite number of people or hash tags. It’s an easy way to find people and content to interact with, which will increase yourfollower count.