Really!If your domain name is competent in a specific subject and the domain name is at least 2-3 years old, then it does not matter whether it is AI content or manual content. It will rank you from the top in a short time.
It is not enough. If the subject is health, you will have expertise in that subject. Google will know that you are a health professional. If the subject is pets, it will be more effective to be known as a veterinarian. It is not impossible, but otherwise you should feed the old domain name with quality backlinks.Really!
You are right.
So just Need old expire domain or old domain with already published content?