Is the budget only for the PC or do you also have to buy a monitor, keyboard, mouse or other accessories?
Do you already have some components like the case that you can recover?
In addition to gaming, do you have other PC needs?
Keep in mind that the more components you recover (such as SSD and Case for example) the more money you can spend on the CPU, RAM and GPU.
I own a Clevo Laptop that is now at least 5 years old, with i7-6700HQ and a GTX 970m with 16GB of RAM and everything still works great.
With 1000 € surely a nice PC comes out.