Router upgrade?

Ch
2

I'm 16 years old live in an extended family with 7 siblings and there's a problem our router is very weak because it has many uses

I want to play games like Minecraft or Gta 5 as normal, but the ping is just too high, it will drive me crazy

We live in 2 apartments, one above and one below, the router is below

and we bought a repeater and it says above but it only helped that we could use the router but not for gaming

I persuaded my parents if they could upgrade to a new router

and they said yes luckily, now we gave them the choice which router would be good

I can't even watch videos in HD, I always have to watch 480p on youtube

We have a speed port w 724v type c and a mesh fritzrepeater 2400 for the apartment above

I hope you understand what I mean

The question now would be: Which router would you recommend to me with a router or powerline

ka

If the apartments have a common electricity meter: Powerline.

Ch

Powerlines always cause problems I've heard access points are better