networking

I've been using my carrier's router for a while now but I've been having some issues. Though speed tests show nice speed, the consistency of the signal is very bad. I work from home in an office with my SO and when we're both using the internet the signal can become really bad. Currently getting 20% signal strength and having a hard time keeping my teams call up.

The router is not that far, like 10-15m away but does go through a wall. Ethernet cables are unfortunately not a possibility and since we both have desktop computers we'd rather not move.

Looking for a router around 100 euros, preferably available on Amazon Spain so I can return it if it doesn't solve my problem. The goal is to shut down the carrier router's wi-fi and just use the new router for all the networking.

I don't having any special requisites. Wi-fi 6E would be a nice to have but honestly wi-fi 6 is good enough. Solid connection is the most important thing for me.

Thanks!