Personally, I've heard a lot of pros say do follow and no follow really doesn't make a difference. If you want a search sting to search for blogs that allow comments- copy and paste this into your search engine: site:.com inurl :blog "post a comment" -"comments closed" -"you must be logged in" You can change .com for .gov, .edu, .net, etc Also, you can search for your keyword by doing this: site:.com inurl :blog "post a comment" -"comments closed" -"you must be logged in" "add your keyword here"
Just try scrapebox software because i use that tool for do follow blogs. For more information just add me to my skype. seocentralservices
No you have to visit each blog manually. The auto generating list will be the no-effective way to find the blogs. Visit blogging community and find out the best blog you like.