Nanny/Househelp

I am thinking of employing a live-in nanny/househelp from another EU country. Any pointers on how to get started or experiences with this? Any agencies? What is the minimum wage?

I am a bit loss on how to get started so I would be grateful for any advice on this

Thanks in advance for all answers

PS: This is the second time I ask this today - don't know why my first q was deleted...