Organic Twitter engagement

I need to do something different. Organic engagement is great and all, but not working as well as I would like it.

What else can I do? The more automated the better.

• Trying Twitter ads now.
• More long form content?
• Posting site on directories?
• Engineering-as-marketing?
• Reddit?

BUT before throwing spaghetti on the wall, I need more real-world data. Which kinds of tweets are working, which ones isn't. Which platforms work better.