Where can I find a suitable gaming PC for me?

I'm looking for a gaming PC that I can only play a few games with: crusader kings 3, medieval dynasty and maybe skyrim. I want to stay under 600 euro if possible, because I mainly gamble on the console, but my laptop is too bad and I actually use it to compose. Is there maybe even one for 400? I actually only play paradox games or something like that. The cheaper the better it would be, but it should run smoothly and so on.

For under 600 euro and a decent gaming PC, you can forget.

Have a look here:
https://www.hardwaredealz.com/bester-gaming-pc-fuer-unter-600-euro-gamer-pc-bis-600-euro

Did I also check, did you also check whether the hardware was even available? The PC on Dubaro, for example, is also not available.