The phrase "best freebies" refers to the items or services that are available at no cost which are considered to be of the highest quality or value compared to other free options. Full definition
There are a couple of good freebie, as well: a 69 - page sampler comic with first chapters of a number of 2000AD stories and a Judge Dredd movie prequel. (goodereader.com)
But for better or worse, we got some damn good freebies in the past few months. (blog.us.playstation.com)
A more honest description would be «Amazon top giveaway» or «Amazon best freebie,» right? (buildbookbuzz.com)