PC upgrade opinions

Hi everyone!

I want to upgrade my PC but won't be able to go to ddr5 and build it from scratch because of the budget. I lean towards upgrading my GPU.

I have a Ryzen 5 5600, 2060 super, 16 gb ram. The thing is that I have a small motherboard and only 2 ram slots. So I would need a new mb to upgrade ram..

Please share your opinions. My budget is around 500 euro.

I was thinking maybe I should go for an AMD GPU but I only had Nvidia so far. I play in 1080p but would be open to get a new monitor and go for 2k.