Thanks for the Infos. @steo Well 2000 is the maximum amount I would be willing to spend. I am not sad if I can get a good TV at at a lower price. But the TV I want to buy should be future proof and should be holding up for at least 5 years. Better would be even longer.
It should also be a good allround model. Suitable for modern gaming (xbox one x) and retro gaming via the OSSC ( the consoles I am going to use, will be the N64, the sega saturn, gamecube and the orginal xbox).