PC Monitors

Hi!

I'm returning an OLED gaming monitor I have as I just don't like it compared to what I have seen but I was wondering if anyone knows of anywhere in or near Galicia that displays monitors like shops do with TVs. I don't want to make the mistake again of buying a super pricey OLED for me not to be happy. There's an El Corte Ingles near me that displays some but only one OLED so I don't really have anything to compare it to other than my one that I am returning :(