Facebook still moves people if you treat it as a conversation with a job, not as a billboard. Reach is a side effect of saves, replies and shares — not of posting more often into the void.
What to post
One promise per post. Show the problem, the proof, the next step. Mix teaching with proof from real work. Cut anything you would skip in the feed yourself.
Engagement you can use
Ask a question you will answer. Reply in public. Move serious leads off the thread into a call or a form. Comments without a path are applause, not a pipeline.
Ads later
Boost what already earned comments. Do not buy reach for a post that died in the first hour.