Moving from Canada and looking for advice on daycares and nannies

Hi Parents,

Just joined this fantastic forum upon a friend’s recommendation and really like it so far.  

We are moving to the Bay Area ( not fully sure where yet we are thinking around San Mateo area for now) in 1.5 months from Canada with our 2 kids ( one just over 2.5 and the other turning 1 in the fall). I have already started freaking out finding childcare and hoping you can help me with some of my questions

1. How does one find daycare (or is it preschool that a 2.5 year attends?) should I search on google maps or care.com or do you have any other recommendations. I love this forum but seems mostly focused on East bay ( understandably) and was not able find something similar for South Bay. Do you know any forums like this for South Bay parents?

2.  I am thinking potentially having a nanny for my 1 year old who can also help us to keep the house tidy and cook for the kids. Is this reasonable?  
 

3. We are also considering a live-in nanny as both my partner and I have pretty demanding careers. Does anyone have any experience with a live in nanny? What should I look for or avoid ( e.g., red flags). Where can we look for live in nannies, should we go through an agency? If yes, do you have any recommendations?

Thank you in advance for your help.