WordPress provides feed form different elements like Tags, Authors, Comments and Categories. If you are blogging on may topics then you may provide your reader with feed of each topic so that their don’t get notified for the content they don’t like to read.
Following are the feed addresses of WordPress, you can use them by replacing tag name, author name, category name and yourdomain.com with with your own:
Site Feed Address: yourdomain.com/feed/
Tags Feed Address: yourdomain.com/tag/tagname/feed/
Author Feed Address: yourdomain.com/author/authorname/feed/
Category Feed Address: yourdomain.com/category/categoryname/feed/
Comments An A Single Post: yourdomain.com/category/postname/feed/
Comment Feed Address For All Comments: yourdomain.com/comments/feed/