Best router out there currently

My Netgear R6900P isn't cutting it anymore. Always having to power cycle it weekly if not more than that. I'm needing something with multiple frequencies for WiFi as well as a way I can set up a "Guest" network separate from the main usage. I would need some kind of parental controls on the Guest network as that would be the one my son would use. I currently have Google Fiber as my ISP and the 1Gig option. My network is not as I currently want it. I didn't get enough CAT drops in the house and I'll be upgrading that. Currently I have a couple switches in my office/living room that I will eventually remove in lieu of direct wiring to a 24 port switch in my network closet.

I know nothing of Mesh networks so if one is suggested, could someone post a little information about mesh networks?