Just a thought, could you nanny share with someone? I have no ideas what nannies charge now, or if you and a friend could share a nanny. (Someone has to have room for the nanny to live, unless they are already living around you.)
I nannied when younger and I also had to find somewhere for my daughter, when I worked. I ended up using a family daycare provider that homeschooled. I am still friends with her, years later.
Finding a homeschool mama who has room and heart for another little one might work for you, too.