What in-wall speakers to pair ES35 to ensure Timbre comparison.

I am setting up a system for my father-in-law and he is wanting a clean system with in-wall speakers. He is going to use a powered screen that has a white housing so I am going to get him the ES35 as his center channel. What would be the best speakers for his front speakers, surround speakers, and height speakers? Going to be a 5.1.2 system.