Aude, partage de nounou à Nantes

Moving back to Nantes from London, I'm looking to set up a shared nanny with another family, preferably English-speaking, from May 2020.
My son Alexandre is 15 months old now, he has been going to nursery in London for 12 months and I'm keen for him to continue developing his English.
I haven't found a nanny yet but I'm hoping that working together we'll cover more ground and be successful soon.