what to do?

It depends on your needs, and where you want to go. I went with Netgear originally,  switched to Google with hardwired backhaul. I now am using all Omada,  with an ER605 router. I'm running the controller software on my PC, using anSG2016P smart POE switch,  and several 610 access points. Very stable. Outstanding management controls. 

Well, you’ve given us a few details but not enough. 

1. what size is your home? 
2. how many floors is it?
3. what is it made of? 
4. how many devices are you trying to support?
5. are you wanting modem separate from router (recommended)?
6. are you wanting multigig speeds and whats the goal? 2.5g, 5g, 10g ethernet?
7. whats your budget? sadly this is key as we can recommend thousands of dollar setups but it does you no good if you can’t afford it
8. Mesh system? single access point?

If you're looking for suggestions on Wi-Fi routers that would work with the SB8200, any brand of Wi-Fi router is compatible. However, I would recommend giving our mesh router a try for performance.
 

Please visit us on https://shop.surfboard.com to view our mesh routers.