Perhaps something like this
https://at.pcpartpicker.com/list/4sLK3y
its €20 above budget, but choosing a cheaper board can get you in budget. This is a good mobo, but a step down would be fine too.
* I’m opting for 5700x over 5600, as it does perform slight better generally, but also for certain games such as simulation based or many objects like cities skylines.