Solution For Meta Details And Not To Index Links


I have two related questions -

I want to know the best practice to enter meta details including meta title and description. I have many pages in a particular brand or category and products are similar. It becomes difficult to create unique meta details for all the pages. Is there any good addon or tool or any other better practice or manual detail is the best way?

Since the products are similar the product descriptions are also difficult to be unique. If I don't want to index any particular page on search engines what is the best way? Please help in detail

Kindly help anyone

If you are familiar with excel macros, you can export products with meta fields, open the generated file in excel and use macros to generate meta titles and descriptions

As for second question, you can disallow some pages for search bots using the robots.txt file: