What modern ac standard router do you recommend for an apartment?

Question

network hardware

You need a router to escape from neighbors in the 5GHz range. The network has two laptops with ac support, a tablet, 2 phones, a TV set-top box via cable. Now, when streaming video via AirPlay to a set-top box via vlc, the sound periodically lags. Plus, if there are more wif clients, then the problem is aggravated in the local network.