Point source /coaxial types are probably best.
I know somebody who mounted Tannoy 15 inch dual concentrics in a wall.
In Walls
I didn’t see a recent thread on this. We are going to be building a second home and while I plan to have a small bedroom as a listening room, our main living room will probably be in wall speakers for WAF. It’s been 20 years since I seriously gave in walls a listen. Are there any particular brands that do this better than others?