These are very basic steps for doing an adoption search; Adoptee for birthparents; birthparents for adoptees; adoptive parents for birthparents.
The single difference that distinguishes an adoption search from any other is that, often, you begin without knowing the name of the person for whom you’re searching. This is complicated by name changes when birthmothers marry.
You face a two-step process
1. Find the name
2. Find the person
There was a time when searching was done in isolation and secret. That, mercifully, is no longer true. There are many places and much help. Assert yourself.