I see this one a lot - someone's got a product in the works but no prototype, and they're trying to build interest before showing anything. It's a smart move, but it's easy to get stuck on what to actually post.
Here's the framework I've seen work time and again, whether it's eyewear, software, or anything else.
first off, forget teasing the product. Nobody cares about a mystery. Focus on the problem you're solving. a simple structure I share with creators:
Problem-first series - no product needed at all. Think things like "3 mistakes I made trying to fix X" or "I tested 5 ways to solve Y - here's what happened." It positions you as someone who gets the pain.
Build-in-public receipts - weekly updates on what you tried, what failed, what changed. Show screenshots, scribbles, whiteboard notes. people trust messy process over polished branding.
Audience participation loop - end each post with a specific question. Not "thoughts?" but something like "Which of these two directions would you actually use?" The comments become your next content backlog.
Tight content buckets - rotate roughly 40% educational (pain points + tips), 40% journey/story (wins + fails), 20% community (polls, opinions, response videos).
Practical cadence: 5 posts a week for 6 weeks. judge by saves and comments, not views. Views are noise early - saves and comments tell you if the problem is real.
And to answer the follow-up someone always asks: should you start with entrepreneur journey or stick to the problem? My advice - stay focused on the problem from day one. The journey is interesting to you and a handful of other founders. The problem is interesting to your future customers. You can weave in personal stories later, but the anchor has to be the pain point.
In your case, eyewear - you've got plenty to work with even without a product. Eye strain, frame fitting, lens coatings, the cost of prescription glasses. start there. Map out 10 specific pre-launch posts around those problems and see what sticks.
Happy to dig into niche specifics if you want - just drop your category and I'll throw out some ideas.