Find a good notebook / laptop for a maximum of 500 euro. It doesn't have to be a gaming laptop. This is mainly used for surfing (Youtube) and office work. If possible, also for smaller, not graphically demanding games. But it should be fast, so a good processor.
Thanks in advance.
PS: I don't care about design, brand.
Maybe the Acer Aspire 3
https://www.hardwaredealz.com/bester-gaming-laptop-fuer-unter-500-euro-gaming-notebook-bis-500-euro/
It should meet your requirements
Got an HP notebook from notebookbilliger for 399 euro with a 256 SSD and a Ryzen 3 CPU and 8 GB RAM. I think that was a great offer. I gave it to my brother. Still, I find the keyboard a little cheap. But my standards are high, so that could be enough for you. I'm used to Lenovo ThinkPad quality and it is really good but 200 euro - 300 euro expensive. You have to expect at least 600 euro to 800 euro.
I don't want anyone else but a Lenovo ThinkPad. Maybe in the meantime you can get it in the simplest version a little cheaper than 600 euro.
My Lenovo ThinkPad from 2012 was an Intel i5 CPU with 8 GB RAM for 670 euro. I'm very happy with it. Only that my keyboard no longer works, because individual keys do not respond and the repair is not worthwhile, so I now use an external ThinkPad keyboard for 60 euro. It is 100% the same as the original, also from Lenovo.
I only know one company. Pearl.de. They sell leasing returns from companies no more than 2 years old. Installed new operating system and finished. I had my Lenovo in operation for 5 years a day. Without problems. Original price 1500 euro for 499 euro with 2 years warranty. Unfortunately it did not want to work with Win 10 because the computing power was too low. Was Win 7 installed on it. Otherwise I would still have it today.