My personal favorites are:
I'm sure there a ton of great sources I'm missing though and would love to hear thoughts from the community!
Not blog per say but find this helpful more on AI/ML business impacts/news front
Their AI Newsletter is also alright for a daily skim
"Our weekday AI newsletter provides news and insight into business opportunities and challenges companies face when implementing machine learning, deep learning and other advanced technologies."
Analytics Vidhya https://www.analyticsvidhya.com/blog/ .is a good one too, like a clone of machinelearningmastery.com
I personally follow and like the following blogs:
These sites are well known for their research oriented topics which will provide deep insights on AI,ML and Data Science.
For general items and getting common understanding , I used:
One I'd forgotten about: thegradient.pub
I finely groked Gaussian Processes with their in depth explanation.
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.
Kdnuggests has good articles on AI/ML as well: https://www.kdnuggets.com/news/index.html
I like this site: https://towardsdatascience.com/
I also like the newsletter that is sent out by: https://www.datascienceweekly.org
Also was pointed to this site via the FastAI courses, really cool visualizations. In particular the image kernels interactive visualization is the best way to present convolutions I've seen!