I am trying to find my twin who was adopted at birth. I have no information on who adopted her or what her adopted name is. What is the best way to find her?

I am trying to find my twin who was adopted at birth. I have no information on who adopted her or what her adopted name is. What is the best way to find her?
If I was u, I'd find out from your parents where you were adopted from, I did this last yr an I got access to my adoption file, thing is they have a lot of data protection in them, but social services should have a post adoption team to help you find any information you are looking for... best thing is to get that file though hun..