How to choose table in SELECT clause without schema qualifier or 'set local'

Hi,

My db have many schemas (company name) and there are SELECT code related to
tables that I distribute for each company users.

The structure inside are the same for all schemas.

It is a nightmare to change code each time to modify the schema qualifier
or SET LOCAL search_path when I add a new company.
Is there command, configurations or any trick to not modify code each time
I add company then code can works for any schema.

Thanks.