I'm looking for some domains with some strength so that I can get backlinks from them for my website. And I wonder how high should the DA and PA of a domain be if I'm looking for a domain that had e.g. PR5 in the past. I know that Google is no longer updating the PR, so if a domain is still PR5 now, it can be a PR1 in reality currently - so I'm not looking for such domains. Therefore I wonder what would be a good strong value of DA & PA of a domain.