My own take home message would be taking a look at So you have 500Mbps-1Gbps fiber and need a router READ THIS FIRST and Tips for getting cheap used x86-based firewall with full Gbit NAT (a PC Engines APU) if you are in the US.
Obviously there are also new contenders (x86_64 based 4-port systems starting around 250-300 EUR/ USD on Bezo's book store or Jack Ma's market places), but some of the older designs going EOL these days are still quite capable and cheaply available on the second hand markets - in combination with just about any AP (preferably OpenWrt supported) you like (including the r7800); same goes for managed switches. The more you get north of ~500 MBit/s, the more this approach becomes a viable option.