Not really a "blog", but like every sub-reddit a crowd sourced collection of trending articles, etc. Great place to survey the literature and get a sense of "does this paper actually matter" from the community
I'm sure there a ton of great sources I'm missing though and would love to hear thoughts from the community!
I highly recommend signing up for NYU's data science newsletter. It covers major data science news and research from industry and academia, links to blogs and papers, and lists upcoming data science events and conferences. I've found it to be a great resource for staying up to date on what's going on in the field.