What is the best way to create a segmentation/target on Facebook for web design services?

My question is...I am doing web design, you know, landing page on websites, so I was wondering what is the best way to create a segmentation on Facebook for that? To create a segmentation? By segmentation, do you mean target?

So I've got a physician and a therapist and she's working with PTSD and trauma. Wondering what the best way to do an old-school ad would be with this.  Oh, "read this if you..."

What do you think about building a lead generation ad that is actually a conversion ad on Facebook? First step is the freebie/lead collection. Next page is a low ticket offer and order bump, then upsell.  It's fine. You just have to be prepared for them to a. not click to the next page...

Today, I have 10 words for you that can polarize or they can unify. My hope is that they unify. Here they are. The words are...

How can I build clientele for my wife's salon targeting a 50-mile radius? Dude, this fits in perfectly with the earlier question of what would you do if you lost everything and only had $10K and had to start all over. I would service businesses like the one referenced. So dude, here's what you do...