It depends on the speed of your connection. The IQrouter is nice but its SQM starts to fall over around 350 Mbps:

> Due to traffic management demands, speeds are limited to around 350Mbps, so if on fiber or high-speed cable, that's the measurable limit.

https://evenroute.com/iqrouter#:~:text=ensure%20low%20latenc...

If you don't mind doing a little work a Pi 4 will do cake at gig.

Since I'm cheap (and I have a pretty terrible internet connection) I've just installed openwrt on a TP-link wifi router I had laying around.