ZenWiFi XD6

Asus XT9 (AX 6e) should do the trick. Wired backhaul or dedicated 5ghz channel for backhaul should work very well for your situation, and more than adequate for 1 GB connection. I personally have an ASUS AXE7800 as my main router with two XD6 as nodes in an 1800 square foot house (two-story with basement – basement square footage not included in the number). Also, the XT9 has a 2.5 GB port to connect to your service provider modem, and you can do link aggregation on two of the 1GB ports going to the other router. You can actually easily do two Asus routers together via mesh because it's essentially baked into their firmware. You don't need to get a mesh system, you can either go for prepackaged mesh or just pick up two routers and set it up as mesh. This opens up options if you look for two cheap Asus Wi-Fi 7 routers, although 66e should work just fine in your situation.

I have the Asus AC56U and AX5400 I use for Spectrum. Great about Asus is the free parental controls (no subscription needed). Speeds are decent. We use it for COD/Rivals.

For the AX Series the 5400 is my primary router and I use them for a mesh network. I would just go to the equivalent BE series for the newer higher throughput main connection needs. Whatever you decide the main router entry point for the ISP should be the best one in the series as it handles all the entry and exit traffic. So you dont want it to be the bottle neck if you spin off nodes later. ASUS RT-BE86U BE6800 is solid. But if you are looking to spend less the RT BE58U or similar but they wont have the 10GB WAN, only 2.5GB.

counterpoint: I've had both the AX5400 and currently using the BE3600. The only noticeable difference is that the Ring Chime modules stay connected now that I'm using the BE3600 while they would disconnect randomly with the AX5400 I upgraded to the BE3600 because Xfinity/Comcast offered 1.2Gbps service (was at 800Mbps when using the AX5400) for $15/mo less (thank goodness for competition from fiber). To take advantage of the upgraded service, I upgraded the router and modem Either way, I'm a fan of ASUS networking products, especially the web admin

I've got that TP-Link and am about to sell it off. Let me know if you want it for a discount, I upgraded to an Asus ZenWifi system for my house now.

Asus Expert Router EBG19P seems to have some benefits over Ubiquiti Cloud Gateway, such as more ports. But it's hard to argue the awesomeness of Ubiquiti UI - I love my UDM Pro. Props to ASUS WRT (Merlin) too. Like others said, just turn off DHCP and WiFi on the ATT Gateway and let your router do the lifting. Couple with Asus Zen Wifi or TP-Link Deco mesh system in access point model for expandable, upgradeable wireless. Eero won't support this setup (no AP mode).

You really just want something that you can control many variables with, and to be more specific, you want one where you can manually select the wifi channel and manually bind a device to a specific access point/mesh node. You cant do this with something like a Google Nest Pro or Eero wifi mesh setups, so I had to rule those out. The reason it's important is because you may have neighbor wifi congestion that varies at different parts of the house, and through testing you've found your ideal channel, but the router is not selecting it. You're SOL in this scenario. Obviously something like Unifi products are great, but if you're on a budget and are looking for simplicity, there's nothing wrong with Asus ZenWifi or TP-Link Deco mesh systems. I settled with Asus and run a pair of XT8 routers i got off ebay to supply wifi throughout the house. The router has some 45 degree angled antennas to beam downwards/upwards too so that helps beam it to our downstairs room directly beneath the mesh node with the router being on the opposite end of the house on the same floor. runs great, i manually select my wireless backhaul channel and all my settings, i can assign my pc to the mesh node if i want to game stream it to the xbox downstairs. it's been very smooth with Asus software so far. anywho. just make sure you pick wi-fi 6e or 7 at this point and that you can select channel and bind to ap. the rest is really determined on your house layout and size which is something you'll just need to be mindful of when placing your routers and using wifiman/netspot to determine if the wifi neighborhood is clear.